workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12pub mod shared_screen;
   13mod status_bar;
   14pub mod tasks;
   15mod theme_preview;
   16mod toast_layer;
   17mod toolbar;
   18mod workspace_settings;
   19
   20pub use crate::notifications::NotificationFrame;
   21pub use dock::Panel;
   22pub use path_list::PathList;
   23pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   24
   25use anyhow::{Context as _, Result, anyhow};
   26use call::{ActiveCall, call_settings::CallSettings};
   27use client::{
   28    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   29    proto::{self, ErrorCode, PanelId, PeerId},
   30};
   31use collections::{HashMap, HashSet, hash_map};
   32use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   33use futures::{
   34    Future, FutureExt, StreamExt,
   35    channel::{
   36        mpsc::{self, UnboundedReceiver, UnboundedSender},
   37        oneshot,
   38    },
   39    future::{Shared, try_join_all},
   40};
   41use gpui::{
   42    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   43    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   44    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   45    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   46    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   47    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   48};
   49pub use history_manager::*;
   50pub use item::{
   51    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   52    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   53};
   54use itertools::Itertools;
   55use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   56pub use modal_layer::*;
   57use node_runtime::NodeRuntime;
   58use notifications::{
   59    DetachAndPromptErr, Notifications, dismiss_app_notification,
   60    simple_message_notification::MessageNotification,
   61};
   62pub use pane::*;
   63pub use pane_group::{
   64    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   65    SplitDirection,
   66};
   67use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   68pub use persistence::{
   69    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   70    model::{ItemId, SerializedWorkspaceLocation},
   71};
   72use postage::stream::Stream;
   73use project::{
   74    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   75    WorktreeSettings,
   76    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   77    toolchain_store::ToolchainStoreEvent,
   78};
   79use remote::{
   80    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   81    remote_client::ConnectionIdentifier,
   82};
   83use schemars::JsonSchema;
   84use serde::Deserialize;
   85use session::AppSession;
   86use settings::{CenteredPaddingSettings, Settings, SettingsLocation, update_settings_file};
   87use shared_screen::SharedScreen;
   88use sqlez::{
   89    bindable::{Bind, Column, StaticColumnCount},
   90    statement::Statement,
   91};
   92use status_bar::StatusBar;
   93pub use status_bar::StatusItemView;
   94use std::{
   95    any::TypeId,
   96    borrow::Cow,
   97    cell::RefCell,
   98    cmp,
   99    collections::{VecDeque, hash_map::DefaultHasher},
  100    env,
  101    hash::{Hash, Hasher},
  102    path::{Path, PathBuf},
  103    process::ExitStatus,
  104    rc::Rc,
  105    sync::{
  106        Arc, LazyLock, Weak,
  107        atomic::{AtomicBool, AtomicUsize},
  108    },
  109    time::Duration,
  110};
  111use task::{DebugScenario, SpawnInTerminal, TaskContext};
  112use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  113pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  114pub use ui;
  115use ui::{Window, prelude::*};
  116use util::{
  117    ResultExt, TryFutureExt,
  118    paths::{PathStyle, SanitizedPath},
  119    rel_path::RelPath,
  120    serde::default_true,
  121};
  122use uuid::Uuid;
  123pub use workspace_settings::{
  124    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  125    WorkspaceSettings,
  126};
  127use zed_actions::{Spawn, feedback::FileBugReport};
  128
  129use crate::persistence::{
  130    SerializedAxis,
  131    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  132};
  133use crate::{item::ItemBufferKind, notifications::NotificationId};
  134
  135pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  136
  137static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  138    env::var("ZED_WINDOW_SIZE")
  139        .ok()
  140        .as_deref()
  141        .and_then(parse_pixel_size_env_var)
  142});
  143
  144static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  145    env::var("ZED_WINDOW_POSITION")
  146        .ok()
  147        .as_deref()
  148        .and_then(parse_pixel_position_env_var)
  149});
  150
  151pub trait TerminalProvider {
  152    fn spawn(
  153        &self,
  154        task: SpawnInTerminal,
  155        window: &mut Window,
  156        cx: &mut App,
  157    ) -> Task<Option<Result<ExitStatus>>>;
  158}
  159
  160pub trait DebuggerProvider {
  161    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  162    fn start_session(
  163        &self,
  164        definition: DebugScenario,
  165        task_context: TaskContext,
  166        active_buffer: Option<Entity<Buffer>>,
  167        worktree_id: Option<WorktreeId>,
  168        window: &mut Window,
  169        cx: &mut App,
  170    );
  171
  172    fn spawn_task_or_modal(
  173        &self,
  174        workspace: &mut Workspace,
  175        action: &Spawn,
  176        window: &mut Window,
  177        cx: &mut Context<Workspace>,
  178    );
  179
  180    fn task_scheduled(&self, cx: &mut App);
  181    fn debug_scenario_scheduled(&self, cx: &mut App);
  182    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  183
  184    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  185}
  186
  187actions!(
  188    workspace,
  189    [
  190        /// Activates the next pane in the workspace.
  191        ActivateNextPane,
  192        /// Activates the previous pane in the workspace.
  193        ActivatePreviousPane,
  194        /// Switches to the next window.
  195        ActivateNextWindow,
  196        /// Switches to the previous window.
  197        ActivatePreviousWindow,
  198        /// Adds a folder to the current project.
  199        AddFolderToProject,
  200        /// Clears all notifications.
  201        ClearAllNotifications,
  202        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  203        ClearNavigationHistory,
  204        /// Closes the active dock.
  205        CloseActiveDock,
  206        /// Closes all docks.
  207        CloseAllDocks,
  208        /// Toggles all docks.
  209        ToggleAllDocks,
  210        /// Closes the current window.
  211        CloseWindow,
  212        /// Opens the feedback dialog.
  213        Feedback,
  214        /// Follows the next collaborator in the session.
  215        FollowNextCollaborator,
  216        /// Moves the focused panel to the next position.
  217        MoveFocusedPanelToNextPosition,
  218        /// Opens a new terminal in the center.
  219        NewCenterTerminal,
  220        /// Creates a new file.
  221        NewFile,
  222        /// Creates a new file in a vertical split.
  223        NewFileSplitVertical,
  224        /// Creates a new file in a horizontal split.
  225        NewFileSplitHorizontal,
  226        /// Opens a new search.
  227        NewSearch,
  228        /// Opens a new terminal.
  229        NewTerminal,
  230        /// Opens a new window.
  231        NewWindow,
  232        /// Opens a file or directory.
  233        Open,
  234        /// Opens multiple files.
  235        OpenFiles,
  236        /// Opens the current location in terminal.
  237        OpenInTerminal,
  238        /// Opens the component preview.
  239        OpenComponentPreview,
  240        /// Reloads the active item.
  241        ReloadActiveItem,
  242        /// Resets the active dock to its default size.
  243        ResetActiveDockSize,
  244        /// Resets all open docks to their default sizes.
  245        ResetOpenDocksSize,
  246        /// Reloads the application
  247        Reload,
  248        /// Saves the current file with a new name.
  249        SaveAs,
  250        /// Saves without formatting.
  251        SaveWithoutFormat,
  252        /// Shuts down all debug adapters.
  253        ShutdownDebugAdapters,
  254        /// Suppresses the current notification.
  255        SuppressNotification,
  256        /// Toggles the bottom dock.
  257        ToggleBottomDock,
  258        /// Toggles centered layout mode.
  259        ToggleCenteredLayout,
  260        /// Toggles edit prediction feature globally for all files.
  261        ToggleEditPrediction,
  262        /// Toggles the left dock.
  263        ToggleLeftDock,
  264        /// Toggles the right dock.
  265        ToggleRightDock,
  266        /// Toggles zoom on the active pane.
  267        ToggleZoom,
  268        /// Stops following a collaborator.
  269        Unfollow,
  270        /// Restores the banner.
  271        RestoreBanner,
  272        /// Toggles expansion of the selected item.
  273        ToggleExpandItem,
  274    ]
  275);
  276
  277/// Activates a specific pane by its index.
  278#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  279#[action(namespace = workspace)]
  280pub struct ActivatePane(pub usize);
  281
  282/// Moves an item to a specific pane by index.
  283#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  284#[action(namespace = workspace)]
  285#[serde(deny_unknown_fields)]
  286pub struct MoveItemToPane {
  287    #[serde(default = "default_1")]
  288    pub destination: usize,
  289    #[serde(default = "default_true")]
  290    pub focus: bool,
  291    #[serde(default)]
  292    pub clone: bool,
  293}
  294
  295fn default_1() -> usize {
  296    1
  297}
  298
  299/// Moves an item to a pane in the specified direction.
  300#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  301#[action(namespace = workspace)]
  302#[serde(deny_unknown_fields)]
  303pub struct MoveItemToPaneInDirection {
  304    #[serde(default = "default_right")]
  305    pub direction: SplitDirection,
  306    #[serde(default = "default_true")]
  307    pub focus: bool,
  308    #[serde(default)]
  309    pub clone: bool,
  310}
  311
  312/// Creates a new file in a split of the desired direction.
  313#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  314#[action(namespace = workspace)]
  315#[serde(deny_unknown_fields)]
  316pub struct NewFileSplit(pub SplitDirection);
  317
  318fn default_right() -> SplitDirection {
  319    SplitDirection::Right
  320}
  321
  322/// Saves all open files in the workspace.
  323#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  324#[action(namespace = workspace)]
  325#[serde(deny_unknown_fields)]
  326pub struct SaveAll {
  327    #[serde(default)]
  328    pub save_intent: Option<SaveIntent>,
  329}
  330
  331/// Saves the current file with the specified options.
  332#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  333#[action(namespace = workspace)]
  334#[serde(deny_unknown_fields)]
  335pub struct Save {
  336    #[serde(default)]
  337    pub save_intent: Option<SaveIntent>,
  338}
  339
  340/// Closes all items and panes in the workspace.
  341#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  342#[action(namespace = workspace)]
  343#[serde(deny_unknown_fields)]
  344pub struct CloseAllItemsAndPanes {
  345    #[serde(default)]
  346    pub save_intent: Option<SaveIntent>,
  347}
  348
  349/// Closes all inactive tabs and panes in the workspace.
  350#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  351#[action(namespace = workspace)]
  352#[serde(deny_unknown_fields)]
  353pub struct CloseInactiveTabsAndPanes {
  354    #[serde(default)]
  355    pub save_intent: Option<SaveIntent>,
  356}
  357
  358/// Sends a sequence of keystrokes to the active element.
  359#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  360#[action(namespace = workspace)]
  361pub struct SendKeystrokes(pub String);
  362
  363actions!(
  364    project_symbols,
  365    [
  366        /// Toggles the project symbols search.
  367        #[action(name = "Toggle")]
  368        ToggleProjectSymbols
  369    ]
  370);
  371
  372/// Toggles the file finder interface.
  373#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  374#[action(namespace = file_finder, name = "Toggle")]
  375#[serde(deny_unknown_fields)]
  376pub struct ToggleFileFinder {
  377    #[serde(default)]
  378    pub separate_history: bool,
  379}
  380
  381/// Increases size of a currently focused dock by a given amount of pixels.
  382#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  383#[action(namespace = workspace)]
  384#[serde(deny_unknown_fields)]
  385pub struct IncreaseActiveDockSize {
  386    /// For 0px parameter, uses UI font size value.
  387    #[serde(default)]
  388    pub px: u32,
  389}
  390
  391/// Decreases size of a currently focused dock by a given amount of pixels.
  392#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  393#[action(namespace = workspace)]
  394#[serde(deny_unknown_fields)]
  395pub struct DecreaseActiveDockSize {
  396    /// For 0px parameter, uses UI font size value.
  397    #[serde(default)]
  398    pub px: u32,
  399}
  400
  401/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  402#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  403#[action(namespace = workspace)]
  404#[serde(deny_unknown_fields)]
  405pub struct IncreaseOpenDocksSize {
  406    /// For 0px parameter, uses UI font size value.
  407    #[serde(default)]
  408    pub px: u32,
  409}
  410
  411/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  412#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  413#[action(namespace = workspace)]
  414#[serde(deny_unknown_fields)]
  415pub struct DecreaseOpenDocksSize {
  416    /// For 0px parameter, uses UI font size value.
  417    #[serde(default)]
  418    pub px: u32,
  419}
  420
  421actions!(
  422    workspace,
  423    [
  424        /// Activates the pane to the left.
  425        ActivatePaneLeft,
  426        /// Activates the pane to the right.
  427        ActivatePaneRight,
  428        /// Activates the pane above.
  429        ActivatePaneUp,
  430        /// Activates the pane below.
  431        ActivatePaneDown,
  432        /// Swaps the current pane with the one to the left.
  433        SwapPaneLeft,
  434        /// Swaps the current pane with the one to the right.
  435        SwapPaneRight,
  436        /// Swaps the current pane with the one above.
  437        SwapPaneUp,
  438        /// Swaps the current pane with the one below.
  439        SwapPaneDown,
  440        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  441        SwapPaneAdjacent,
  442        /// Move the current pane to be at the far left.
  443        MovePaneLeft,
  444        /// Move the current pane to be at the far right.
  445        MovePaneRight,
  446        /// Move the current pane to be at the very top.
  447        MovePaneUp,
  448        /// Move the current pane to be at the very bottom.
  449        MovePaneDown,
  450    ]
  451);
  452
  453#[derive(PartialEq, Eq, Debug)]
  454pub enum CloseIntent {
  455    /// Quit the program entirely.
  456    Quit,
  457    /// Close a window.
  458    CloseWindow,
  459    /// Replace the workspace in an existing window.
  460    ReplaceWindow,
  461}
  462
  463#[derive(Clone)]
  464pub struct Toast {
  465    id: NotificationId,
  466    msg: Cow<'static, str>,
  467    autohide: bool,
  468    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  469}
  470
  471impl Toast {
  472    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  473        Toast {
  474            id,
  475            msg: msg.into(),
  476            on_click: None,
  477            autohide: false,
  478        }
  479    }
  480
  481    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  482    where
  483        M: Into<Cow<'static, str>>,
  484        F: Fn(&mut Window, &mut App) + 'static,
  485    {
  486        self.on_click = Some((message.into(), Arc::new(on_click)));
  487        self
  488    }
  489
  490    pub fn autohide(mut self) -> Self {
  491        self.autohide = true;
  492        self
  493    }
  494}
  495
  496impl PartialEq for Toast {
  497    fn eq(&self, other: &Self) -> bool {
  498        self.id == other.id
  499            && self.msg == other.msg
  500            && self.on_click.is_some() == other.on_click.is_some()
  501    }
  502}
  503
  504/// Opens a new terminal with the specified working directory.
  505#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  506#[action(namespace = workspace)]
  507#[serde(deny_unknown_fields)]
  508pub struct OpenTerminal {
  509    pub working_directory: PathBuf,
  510}
  511
  512#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  513pub struct WorkspaceId(i64);
  514
  515impl StaticColumnCount for WorkspaceId {}
  516impl Bind for WorkspaceId {
  517    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  518        self.0.bind(statement, start_index)
  519    }
  520}
  521impl Column for WorkspaceId {
  522    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  523        i64::column(statement, start_index)
  524            .map(|(i, next_index)| (Self(i), next_index))
  525            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  526    }
  527}
  528impl From<WorkspaceId> for i64 {
  529    fn from(val: WorkspaceId) -> Self {
  530        val.0
  531    }
  532}
  533
  534fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  535    let paths = cx.prompt_for_paths(options);
  536    cx.spawn(
  537        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  538            Ok(Some(paths)) => {
  539                cx.update(|cx| {
  540                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  541                })
  542                .ok();
  543            }
  544            Ok(None) => {}
  545            Err(err) => {
  546                util::log_err(&err);
  547                cx.update(|cx| {
  548                    if let Some(workspace_window) = cx
  549                        .active_window()
  550                        .and_then(|window| window.downcast::<Workspace>())
  551                    {
  552                        workspace_window
  553                            .update(cx, |workspace, _, cx| {
  554                                workspace.show_portal_error(err.to_string(), cx);
  555                            })
  556                            .ok();
  557                    }
  558                })
  559                .ok();
  560            }
  561        },
  562    )
  563    .detach();
  564}
  565
  566pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  567    component::init();
  568    theme_preview::init(cx);
  569    toast_layer::init(cx);
  570    history_manager::init(cx);
  571
  572    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  573    cx.on_action(|_: &Reload, cx| reload(cx));
  574
  575    cx.on_action({
  576        let app_state = Arc::downgrade(&app_state);
  577        move |_: &Open, cx: &mut App| {
  578            if let Some(app_state) = app_state.upgrade() {
  579                prompt_and_open_paths(
  580                    app_state,
  581                    PathPromptOptions {
  582                        files: true,
  583                        directories: true,
  584                        multiple: true,
  585                        prompt: None,
  586                    },
  587                    cx,
  588                );
  589            }
  590        }
  591    });
  592    cx.on_action({
  593        let app_state = Arc::downgrade(&app_state);
  594        move |_: &OpenFiles, cx: &mut App| {
  595            let directories = cx.can_select_mixed_files_and_dirs();
  596            if let Some(app_state) = app_state.upgrade() {
  597                prompt_and_open_paths(
  598                    app_state,
  599                    PathPromptOptions {
  600                        files: true,
  601                        directories,
  602                        multiple: true,
  603                        prompt: None,
  604                    },
  605                    cx,
  606                );
  607            }
  608        }
  609    });
  610}
  611
  612type BuildProjectItemFn =
  613    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  614
  615type BuildProjectItemForPathFn =
  616    fn(
  617        &Entity<Project>,
  618        &ProjectPath,
  619        &mut Window,
  620        &mut App,
  621    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  622
  623#[derive(Clone, Default)]
  624struct ProjectItemRegistry {
  625    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  626    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  627}
  628
  629impl ProjectItemRegistry {
  630    fn register<T: ProjectItem>(&mut self) {
  631        self.build_project_item_fns_by_type.insert(
  632            TypeId::of::<T::Item>(),
  633            |item, project, pane, window, cx| {
  634                let item = item.downcast().unwrap();
  635                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  636                    as Box<dyn ItemHandle>
  637            },
  638        );
  639        self.build_project_item_for_path_fns
  640            .push(|project, project_path, window, cx| {
  641                let project_path = project_path.clone();
  642                let is_file = project
  643                    .read(cx)
  644                    .entry_for_path(&project_path, cx)
  645                    .is_some_and(|entry| entry.is_file());
  646                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  647                let is_local = project.read(cx).is_local();
  648                let project_item =
  649                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  650                let project = project.clone();
  651                Some(window.spawn(cx, async move |cx| {
  652                    match project_item.await.with_context(|| {
  653                        format!(
  654                            "opening project path {:?}",
  655                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  656                        )
  657                    }) {
  658                        Ok(project_item) => {
  659                            let project_item = project_item;
  660                            let project_entry_id: Option<ProjectEntryId> =
  661                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  662                            let build_workspace_item = Box::new(
  663                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  664                                    Box::new(cx.new(|cx| {
  665                                        T::for_project_item(
  666                                            project,
  667                                            Some(pane),
  668                                            project_item,
  669                                            window,
  670                                            cx,
  671                                        )
  672                                    })) as Box<dyn ItemHandle>
  673                                },
  674                            ) as Box<_>;
  675                            Ok((project_entry_id, build_workspace_item))
  676                        }
  677                        Err(e) => {
  678                            log::warn!("Failed to open a project item: {e:#}");
  679                            if e.error_code() == ErrorCode::Internal {
  680                                if let Some(abs_path) =
  681                                    entry_abs_path.as_deref().filter(|_| is_file)
  682                                {
  683                                    if let Some(broken_project_item_view) =
  684                                        cx.update(|window, cx| {
  685                                            T::for_broken_project_item(
  686                                                abs_path, is_local, &e, window, cx,
  687                                            )
  688                                        })?
  689                                    {
  690                                        let build_workspace_item = Box::new(
  691                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  692                                                cx.new(|_| broken_project_item_view).boxed_clone()
  693                                            },
  694                                        )
  695                                        as Box<_>;
  696                                        return Ok((None, build_workspace_item));
  697                                    }
  698                                }
  699                            }
  700                            Err(e)
  701                        }
  702                    }
  703                }))
  704            });
  705    }
  706
  707    fn open_path(
  708        &self,
  709        project: &Entity<Project>,
  710        path: &ProjectPath,
  711        window: &mut Window,
  712        cx: &mut App,
  713    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  714        let Some(open_project_item) = self
  715            .build_project_item_for_path_fns
  716            .iter()
  717            .rev()
  718            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  719        else {
  720            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  721        };
  722        open_project_item
  723    }
  724
  725    fn build_item<T: project::ProjectItem>(
  726        &self,
  727        item: Entity<T>,
  728        project: Entity<Project>,
  729        pane: Option<&Pane>,
  730        window: &mut Window,
  731        cx: &mut App,
  732    ) -> Option<Box<dyn ItemHandle>> {
  733        let build = self
  734            .build_project_item_fns_by_type
  735            .get(&TypeId::of::<T>())?;
  736        Some(build(item.into_any(), project, pane, window, cx))
  737    }
  738}
  739
  740type WorkspaceItemBuilder =
  741    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  742
  743impl Global for ProjectItemRegistry {}
  744
  745/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  746/// items will get a chance to open the file, starting from the project item that
  747/// was added last.
  748pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  749    cx.default_global::<ProjectItemRegistry>().register::<I>();
  750}
  751
  752#[derive(Default)]
  753pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  754
  755struct FollowableViewDescriptor {
  756    from_state_proto: fn(
  757        Entity<Workspace>,
  758        ViewId,
  759        &mut Option<proto::view::Variant>,
  760        &mut Window,
  761        &mut App,
  762    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  763    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  764}
  765
  766impl Global for FollowableViewRegistry {}
  767
  768impl FollowableViewRegistry {
  769    pub fn register<I: FollowableItem>(cx: &mut App) {
  770        cx.default_global::<Self>().0.insert(
  771            TypeId::of::<I>(),
  772            FollowableViewDescriptor {
  773                from_state_proto: |workspace, id, state, window, cx| {
  774                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  775                        cx.foreground_executor()
  776                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  777                    })
  778                },
  779                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  780            },
  781        );
  782    }
  783
  784    pub fn from_state_proto(
  785        workspace: Entity<Workspace>,
  786        view_id: ViewId,
  787        mut state: Option<proto::view::Variant>,
  788        window: &mut Window,
  789        cx: &mut App,
  790    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  791        cx.update_default_global(|this: &mut Self, cx| {
  792            this.0.values().find_map(|descriptor| {
  793                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  794            })
  795        })
  796    }
  797
  798    pub fn to_followable_view(
  799        view: impl Into<AnyView>,
  800        cx: &App,
  801    ) -> Option<Box<dyn FollowableItemHandle>> {
  802        let this = cx.try_global::<Self>()?;
  803        let view = view.into();
  804        let descriptor = this.0.get(&view.entity_type())?;
  805        Some((descriptor.to_followable_view)(&view))
  806    }
  807}
  808
  809#[derive(Copy, Clone)]
  810struct SerializableItemDescriptor {
  811    deserialize: fn(
  812        Entity<Project>,
  813        WeakEntity<Workspace>,
  814        WorkspaceId,
  815        ItemId,
  816        &mut Window,
  817        &mut Context<Pane>,
  818    ) -> Task<Result<Box<dyn ItemHandle>>>,
  819    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  820    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  821}
  822
  823#[derive(Default)]
  824struct SerializableItemRegistry {
  825    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  826    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  827}
  828
  829impl Global for SerializableItemRegistry {}
  830
  831impl SerializableItemRegistry {
  832    fn deserialize(
  833        item_kind: &str,
  834        project: Entity<Project>,
  835        workspace: WeakEntity<Workspace>,
  836        workspace_id: WorkspaceId,
  837        item_item: ItemId,
  838        window: &mut Window,
  839        cx: &mut Context<Pane>,
  840    ) -> Task<Result<Box<dyn ItemHandle>>> {
  841        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  842            return Task::ready(Err(anyhow!(
  843                "cannot deserialize {}, descriptor not found",
  844                item_kind
  845            )));
  846        };
  847
  848        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  849    }
  850
  851    fn cleanup(
  852        item_kind: &str,
  853        workspace_id: WorkspaceId,
  854        loaded_items: Vec<ItemId>,
  855        window: &mut Window,
  856        cx: &mut App,
  857    ) -> Task<Result<()>> {
  858        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  859            return Task::ready(Err(anyhow!(
  860                "cannot cleanup {}, descriptor not found",
  861                item_kind
  862            )));
  863        };
  864
  865        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  866    }
  867
  868    fn view_to_serializable_item_handle(
  869        view: AnyView,
  870        cx: &App,
  871    ) -> Option<Box<dyn SerializableItemHandle>> {
  872        let this = cx.try_global::<Self>()?;
  873        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  874        Some((descriptor.view_to_serializable_item)(view))
  875    }
  876
  877    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  878        let this = cx.try_global::<Self>()?;
  879        this.descriptors_by_kind.get(item_kind).copied()
  880    }
  881}
  882
  883pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  884    let serialized_item_kind = I::serialized_item_kind();
  885
  886    let registry = cx.default_global::<SerializableItemRegistry>();
  887    let descriptor = SerializableItemDescriptor {
  888        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  889            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  890            cx.foreground_executor()
  891                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  892        },
  893        cleanup: |workspace_id, loaded_items, window, cx| {
  894            I::cleanup(workspace_id, loaded_items, window, cx)
  895        },
  896        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  897    };
  898    registry
  899        .descriptors_by_kind
  900        .insert(Arc::from(serialized_item_kind), descriptor);
  901    registry
  902        .descriptors_by_type
  903        .insert(TypeId::of::<I>(), descriptor);
  904}
  905
  906pub struct AppState {
  907    pub languages: Arc<LanguageRegistry>,
  908    pub client: Arc<Client>,
  909    pub user_store: Entity<UserStore>,
  910    pub workspace_store: Entity<WorkspaceStore>,
  911    pub fs: Arc<dyn fs::Fs>,
  912    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  913    pub node_runtime: NodeRuntime,
  914    pub session: Entity<AppSession>,
  915}
  916
  917struct GlobalAppState(Weak<AppState>);
  918
  919impl Global for GlobalAppState {}
  920
  921pub struct WorkspaceStore {
  922    workspaces: HashSet<WindowHandle<Workspace>>,
  923    client: Arc<Client>,
  924    _subscriptions: Vec<client::Subscription>,
  925}
  926
  927#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  928pub enum CollaboratorId {
  929    PeerId(PeerId),
  930    Agent,
  931}
  932
  933impl From<PeerId> for CollaboratorId {
  934    fn from(peer_id: PeerId) -> Self {
  935        CollaboratorId::PeerId(peer_id)
  936    }
  937}
  938
  939impl From<&PeerId> for CollaboratorId {
  940    fn from(peer_id: &PeerId) -> Self {
  941        CollaboratorId::PeerId(*peer_id)
  942    }
  943}
  944
  945#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  946struct Follower {
  947    project_id: Option<u64>,
  948    peer_id: PeerId,
  949}
  950
  951impl AppState {
  952    #[track_caller]
  953    pub fn global(cx: &App) -> Weak<Self> {
  954        cx.global::<GlobalAppState>().0.clone()
  955    }
  956    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  957        cx.try_global::<GlobalAppState>()
  958            .map(|state| state.0.clone())
  959    }
  960    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  961        cx.set_global(GlobalAppState(state));
  962    }
  963
  964    #[cfg(any(test, feature = "test-support"))]
  965    pub fn test(cx: &mut App) -> Arc<Self> {
  966        use node_runtime::NodeRuntime;
  967        use session::Session;
  968        use settings::SettingsStore;
  969
  970        if !cx.has_global::<SettingsStore>() {
  971            let settings_store = SettingsStore::test(cx);
  972            cx.set_global(settings_store);
  973        }
  974
  975        let fs = fs::FakeFs::new(cx.background_executor().clone());
  976        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  977        let clock = Arc::new(clock::FakeSystemClock::new());
  978        let http_client = http_client::FakeHttpClient::with_404_response();
  979        let client = Client::new(clock, http_client, cx);
  980        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  981        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  982        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  983
  984        theme::init(theme::LoadThemes::JustBase, cx);
  985        client::init(&client, cx);
  986
  987        Arc::new(Self {
  988            client,
  989            fs,
  990            languages,
  991            user_store,
  992            workspace_store,
  993            node_runtime: NodeRuntime::unavailable(),
  994            build_window_options: |_, _| Default::default(),
  995            session,
  996        })
  997    }
  998}
  999
 1000struct DelayedDebouncedEditAction {
 1001    task: Option<Task<()>>,
 1002    cancel_channel: Option<oneshot::Sender<()>>,
 1003}
 1004
 1005impl DelayedDebouncedEditAction {
 1006    fn new() -> DelayedDebouncedEditAction {
 1007        DelayedDebouncedEditAction {
 1008            task: None,
 1009            cancel_channel: None,
 1010        }
 1011    }
 1012
 1013    fn fire_new<F>(
 1014        &mut self,
 1015        delay: Duration,
 1016        window: &mut Window,
 1017        cx: &mut Context<Workspace>,
 1018        func: F,
 1019    ) where
 1020        F: 'static
 1021            + Send
 1022            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1023    {
 1024        if let Some(channel) = self.cancel_channel.take() {
 1025            _ = channel.send(());
 1026        }
 1027
 1028        let (sender, mut receiver) = oneshot::channel::<()>();
 1029        self.cancel_channel = Some(sender);
 1030
 1031        let previous_task = self.task.take();
 1032        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1033            let mut timer = cx.background_executor().timer(delay).fuse();
 1034            if let Some(previous_task) = previous_task {
 1035                previous_task.await;
 1036            }
 1037
 1038            futures::select_biased! {
 1039                _ = receiver => return,
 1040                    _ = timer => {}
 1041            }
 1042
 1043            if let Some(result) = workspace
 1044                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1045                .log_err()
 1046            {
 1047                result.await.log_err();
 1048            }
 1049        }));
 1050    }
 1051}
 1052
 1053pub enum Event {
 1054    PaneAdded(Entity<Pane>),
 1055    PaneRemoved,
 1056    ItemAdded {
 1057        item: Box<dyn ItemHandle>,
 1058    },
 1059    ActiveItemChanged,
 1060    ItemRemoved {
 1061        item_id: EntityId,
 1062    },
 1063    UserSavedItem {
 1064        pane: WeakEntity<Pane>,
 1065        item: Box<dyn WeakItemHandle>,
 1066        save_intent: SaveIntent,
 1067    },
 1068    ContactRequestedJoin(u64),
 1069    WorkspaceCreated(WeakEntity<Workspace>),
 1070    OpenBundledFile {
 1071        text: Cow<'static, str>,
 1072        title: &'static str,
 1073        language: &'static str,
 1074    },
 1075    ZoomChanged,
 1076    ModalOpened,
 1077}
 1078
 1079#[derive(Debug)]
 1080pub enum OpenVisible {
 1081    All,
 1082    None,
 1083    OnlyFiles,
 1084    OnlyDirectories,
 1085}
 1086
 1087enum WorkspaceLocation {
 1088    // Valid local paths or SSH project to serialize
 1089    Location(SerializedWorkspaceLocation, PathList),
 1090    // No valid location found hence clear session id
 1091    DetachFromSession,
 1092    // No valid location found to serialize
 1093    None,
 1094}
 1095
 1096type PromptForNewPath = Box<
 1097    dyn Fn(
 1098        &mut Workspace,
 1099        DirectoryLister,
 1100        &mut Window,
 1101        &mut Context<Workspace>,
 1102    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1103>;
 1104
 1105type PromptForOpenPath = Box<
 1106    dyn Fn(
 1107        &mut Workspace,
 1108        DirectoryLister,
 1109        &mut Window,
 1110        &mut Context<Workspace>,
 1111    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1112>;
 1113
 1114#[derive(Default)]
 1115struct DispatchingKeystrokes {
 1116    dispatched: HashSet<Vec<Keystroke>>,
 1117    queue: VecDeque<Keystroke>,
 1118    task: Option<Shared<Task<()>>>,
 1119}
 1120
 1121/// Collects everything project-related for a certain window opened.
 1122/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1123///
 1124/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1125/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1126/// that can be used to register a global action to be triggered from any place in the window.
 1127pub struct Workspace {
 1128    weak_self: WeakEntity<Self>,
 1129    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1130    zoomed: Option<AnyWeakView>,
 1131    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1132    zoomed_position: Option<DockPosition>,
 1133    center: PaneGroup,
 1134    left_dock: Entity<Dock>,
 1135    bottom_dock: Entity<Dock>,
 1136    right_dock: Entity<Dock>,
 1137    panes: Vec<Entity<Pane>>,
 1138    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1139    active_pane: Entity<Pane>,
 1140    last_active_center_pane: Option<WeakEntity<Pane>>,
 1141    last_active_view_id: Option<proto::ViewId>,
 1142    status_bar: Entity<StatusBar>,
 1143    modal_layer: Entity<ModalLayer>,
 1144    toast_layer: Entity<ToastLayer>,
 1145    titlebar_item: Option<AnyView>,
 1146    notifications: Notifications,
 1147    suppressed_notifications: HashSet<NotificationId>,
 1148    project: Entity<Project>,
 1149    follower_states: HashMap<CollaboratorId, FollowerState>,
 1150    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1151    window_edited: bool,
 1152    last_window_title: Option<String>,
 1153    dirty_items: HashMap<EntityId, Subscription>,
 1154    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1155    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1156    database_id: Option<WorkspaceId>,
 1157    app_state: Arc<AppState>,
 1158    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1159    _subscriptions: Vec<Subscription>,
 1160    _apply_leader_updates: Task<Result<()>>,
 1161    _observe_current_user: Task<Result<()>>,
 1162    _schedule_serialize_workspace: Option<Task<()>>,
 1163    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1164    pane_history_timestamp: Arc<AtomicUsize>,
 1165    bounds: Bounds<Pixels>,
 1166    pub centered_layout: bool,
 1167    bounds_save_task_queued: Option<Task<()>>,
 1168    on_prompt_for_new_path: Option<PromptForNewPath>,
 1169    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1170    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1171    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1172    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1173    _items_serializer: Task<Result<()>>,
 1174    session_id: Option<String>,
 1175    scheduled_tasks: Vec<Task<()>>,
 1176    last_open_dock_positions: Vec<DockPosition>,
 1177    removing: bool,
 1178}
 1179
 1180impl EventEmitter<Event> for Workspace {}
 1181
 1182#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1183pub struct ViewId {
 1184    pub creator: CollaboratorId,
 1185    pub id: u64,
 1186}
 1187
 1188pub struct FollowerState {
 1189    center_pane: Entity<Pane>,
 1190    dock_pane: Option<Entity<Pane>>,
 1191    active_view_id: Option<ViewId>,
 1192    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1193}
 1194
 1195struct FollowerView {
 1196    view: Box<dyn FollowableItemHandle>,
 1197    location: Option<proto::PanelId>,
 1198}
 1199
 1200impl Workspace {
 1201    pub fn new(
 1202        workspace_id: Option<WorkspaceId>,
 1203        project: Entity<Project>,
 1204        app_state: Arc<AppState>,
 1205        window: &mut Window,
 1206        cx: &mut Context<Self>,
 1207    ) -> Self {
 1208        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1209            match event {
 1210                project::Event::RemoteIdChanged(_) => {
 1211                    this.update_window_title(window, cx);
 1212                }
 1213
 1214                project::Event::CollaboratorLeft(peer_id) => {
 1215                    this.collaborator_left(*peer_id, window, cx);
 1216                }
 1217
 1218                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1219                    this.update_window_title(window, cx);
 1220                    this.serialize_workspace(window, cx);
 1221                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1222                    this.update_history(cx);
 1223                }
 1224
 1225                project::Event::DisconnectedFromHost => {
 1226                    this.update_window_edited(window, cx);
 1227                    let leaders_to_unfollow =
 1228                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1229                    for leader_id in leaders_to_unfollow {
 1230                        this.unfollow(leader_id, window, cx);
 1231                    }
 1232                }
 1233
 1234                project::Event::DisconnectedFromSshRemote => {
 1235                    this.update_window_edited(window, cx);
 1236                }
 1237
 1238                project::Event::Closed => {
 1239                    window.remove_window();
 1240                }
 1241
 1242                project::Event::DeletedEntry(_, entry_id) => {
 1243                    for pane in this.panes.iter() {
 1244                        pane.update(cx, |pane, cx| {
 1245                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1246                        });
 1247                    }
 1248                }
 1249
 1250                project::Event::Toast {
 1251                    notification_id,
 1252                    message,
 1253                } => this.show_notification(
 1254                    NotificationId::named(notification_id.clone()),
 1255                    cx,
 1256                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1257                ),
 1258
 1259                project::Event::HideToast { notification_id } => {
 1260                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1261                }
 1262
 1263                project::Event::LanguageServerPrompt(request) => {
 1264                    struct LanguageServerPrompt;
 1265
 1266                    let mut hasher = DefaultHasher::new();
 1267                    request.lsp_name.as_str().hash(&mut hasher);
 1268                    let id = hasher.finish();
 1269
 1270                    this.show_notification(
 1271                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1272                        cx,
 1273                        |cx| {
 1274                            cx.new(|cx| {
 1275                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1276                            })
 1277                        },
 1278                    );
 1279                }
 1280
 1281                project::Event::AgentLocationChanged => {
 1282                    this.handle_agent_location_changed(window, cx)
 1283                }
 1284
 1285                _ => {}
 1286            }
 1287            cx.notify()
 1288        })
 1289        .detach();
 1290
 1291        cx.subscribe_in(
 1292            &project.read(cx).breakpoint_store(),
 1293            window,
 1294            |workspace, _, event, window, cx| match event {
 1295                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1296                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1297                    workspace.serialize_workspace(window, cx);
 1298                }
 1299                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1300            },
 1301        )
 1302        .detach();
 1303        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1304            cx.subscribe_in(
 1305                &toolchain_store,
 1306                window,
 1307                |workspace, _, event, window, cx| match event {
 1308                    ToolchainStoreEvent::CustomToolchainsModified => {
 1309                        workspace.serialize_workspace(window, cx);
 1310                    }
 1311                    _ => {}
 1312                },
 1313            )
 1314            .detach();
 1315        }
 1316
 1317        cx.on_focus_lost(window, |this, window, cx| {
 1318            let focus_handle = this.focus_handle(cx);
 1319            window.focus(&focus_handle);
 1320        })
 1321        .detach();
 1322
 1323        let weak_handle = cx.entity().downgrade();
 1324        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1325
 1326        let center_pane = cx.new(|cx| {
 1327            let mut center_pane = Pane::new(
 1328                weak_handle.clone(),
 1329                project.clone(),
 1330                pane_history_timestamp.clone(),
 1331                None,
 1332                NewFile.boxed_clone(),
 1333                true,
 1334                window,
 1335                cx,
 1336            );
 1337            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1338            center_pane
 1339        });
 1340        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1341            .detach();
 1342
 1343        window.focus(&center_pane.focus_handle(cx));
 1344
 1345        cx.emit(Event::PaneAdded(center_pane.clone()));
 1346
 1347        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1348        app_state.workspace_store.update(cx, |store, _| {
 1349            store.workspaces.insert(window_handle);
 1350        });
 1351
 1352        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1353        let mut connection_status = app_state.client.status();
 1354        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1355            current_user.next().await;
 1356            connection_status.next().await;
 1357            let mut stream =
 1358                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1359
 1360            while stream.recv().await.is_some() {
 1361                this.update(cx, |_, cx| cx.notify())?;
 1362            }
 1363            anyhow::Ok(())
 1364        });
 1365
 1366        // All leader updates are enqueued and then processed in a single task, so
 1367        // that each asynchronous operation can be run in order.
 1368        let (leader_updates_tx, mut leader_updates_rx) =
 1369            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1370        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1371            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1372                Self::process_leader_update(&this, leader_id, update, cx)
 1373                    .await
 1374                    .log_err();
 1375            }
 1376
 1377            Ok(())
 1378        });
 1379
 1380        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1381        let modal_layer = cx.new(|_| ModalLayer::new());
 1382        let toast_layer = cx.new(|_| ToastLayer::new());
 1383        cx.subscribe(
 1384            &modal_layer,
 1385            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1386                cx.emit(Event::ModalOpened);
 1387            },
 1388        )
 1389        .detach();
 1390
 1391        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1392        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1393        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1394        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1395        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1396        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1397        let status_bar = cx.new(|cx| {
 1398            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1399            status_bar.add_left_item(left_dock_buttons, window, cx);
 1400            status_bar.add_right_item(right_dock_buttons, window, cx);
 1401            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1402            status_bar
 1403        });
 1404
 1405        let session_id = app_state.session.read(cx).id().to_owned();
 1406
 1407        let mut active_call = None;
 1408        if let Some(call) = ActiveCall::try_global(cx) {
 1409            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1410            active_call = Some((call, subscriptions));
 1411        }
 1412
 1413        let (serializable_items_tx, serializable_items_rx) =
 1414            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1415        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1416            Self::serialize_items(&this, serializable_items_rx, cx).await
 1417        });
 1418
 1419        let subscriptions = vec![
 1420            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1421            cx.observe_window_bounds(window, move |this, window, cx| {
 1422                if this.bounds_save_task_queued.is_some() {
 1423                    return;
 1424                }
 1425                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1426                    cx.background_executor()
 1427                        .timer(Duration::from_millis(100))
 1428                        .await;
 1429                    this.update_in(cx, |this, window, cx| {
 1430                        if let Some(display) = window.display(cx)
 1431                            && let Ok(display_uuid) = display.uuid()
 1432                        {
 1433                            let window_bounds = window.inner_window_bounds();
 1434                            if let Some(database_id) = workspace_id {
 1435                                cx.background_executor()
 1436                                    .spawn(DB.set_window_open_status(
 1437                                        database_id,
 1438                                        SerializedWindowBounds(window_bounds),
 1439                                        display_uuid,
 1440                                    ))
 1441                                    .detach_and_log_err(cx);
 1442                            }
 1443                        }
 1444                        this.bounds_save_task_queued.take();
 1445                    })
 1446                    .ok();
 1447                }));
 1448                cx.notify();
 1449            }),
 1450            cx.observe_window_appearance(window, |_, window, cx| {
 1451                let window_appearance = window.appearance();
 1452
 1453                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1454
 1455                GlobalTheme::reload_theme(cx);
 1456                GlobalTheme::reload_icon_theme(cx);
 1457            }),
 1458            cx.on_release(move |this, cx| {
 1459                this.app_state.workspace_store.update(cx, move |store, _| {
 1460                    store.workspaces.remove(&window_handle);
 1461                })
 1462            }),
 1463        ];
 1464
 1465        cx.defer_in(window, |this, window, cx| {
 1466            this.update_window_title(window, cx);
 1467            this.show_initial_notifications(cx);
 1468        });
 1469        Workspace {
 1470            weak_self: weak_handle.clone(),
 1471            zoomed: None,
 1472            zoomed_position: None,
 1473            previous_dock_drag_coordinates: None,
 1474            center: PaneGroup::new(center_pane.clone()),
 1475            panes: vec![center_pane.clone()],
 1476            panes_by_item: Default::default(),
 1477            active_pane: center_pane.clone(),
 1478            last_active_center_pane: Some(center_pane.downgrade()),
 1479            last_active_view_id: None,
 1480            status_bar,
 1481            modal_layer,
 1482            toast_layer,
 1483            titlebar_item: None,
 1484            notifications: Notifications::default(),
 1485            suppressed_notifications: HashSet::default(),
 1486            left_dock,
 1487            bottom_dock,
 1488            right_dock,
 1489            project: project.clone(),
 1490            follower_states: Default::default(),
 1491            last_leaders_by_pane: Default::default(),
 1492            dispatching_keystrokes: Default::default(),
 1493            window_edited: false,
 1494            last_window_title: None,
 1495            dirty_items: Default::default(),
 1496            active_call,
 1497            database_id: workspace_id,
 1498            app_state,
 1499            _observe_current_user,
 1500            _apply_leader_updates,
 1501            _schedule_serialize_workspace: None,
 1502            _schedule_serialize_ssh_paths: None,
 1503            leader_updates_tx,
 1504            _subscriptions: subscriptions,
 1505            pane_history_timestamp,
 1506            workspace_actions: Default::default(),
 1507            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1508            bounds: Default::default(),
 1509            centered_layout: false,
 1510            bounds_save_task_queued: None,
 1511            on_prompt_for_new_path: None,
 1512            on_prompt_for_open_path: None,
 1513            terminal_provider: None,
 1514            debugger_provider: None,
 1515            serializable_items_tx,
 1516            _items_serializer,
 1517            session_id: Some(session_id),
 1518
 1519            scheduled_tasks: Vec::new(),
 1520            last_open_dock_positions: Vec::new(),
 1521            removing: false,
 1522        }
 1523    }
 1524
 1525    pub fn new_local(
 1526        abs_paths: Vec<PathBuf>,
 1527        app_state: Arc<AppState>,
 1528        requesting_window: Option<WindowHandle<Workspace>>,
 1529        env: Option<HashMap<String, String>>,
 1530        cx: &mut App,
 1531    ) -> Task<
 1532        anyhow::Result<(
 1533            WindowHandle<Workspace>,
 1534            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1535        )>,
 1536    > {
 1537        let project_handle = Project::local(
 1538            app_state.client.clone(),
 1539            app_state.node_runtime.clone(),
 1540            app_state.user_store.clone(),
 1541            app_state.languages.clone(),
 1542            app_state.fs.clone(),
 1543            env,
 1544            cx,
 1545        );
 1546
 1547        cx.spawn(async move |cx| {
 1548            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1549            for path in abs_paths.into_iter() {
 1550                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1551                    paths_to_open.push(canonical)
 1552                } else {
 1553                    paths_to_open.push(path)
 1554                }
 1555            }
 1556
 1557            let serialized_workspace =
 1558                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1559
 1560            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1561                paths_to_open = paths.ordered_paths().cloned().collect();
 1562                if !paths.is_lexicographically_ordered() {
 1563                    project_handle
 1564                        .update(cx, |project, cx| {
 1565                            project.set_worktrees_reordered(true, cx);
 1566                        })
 1567                        .log_err();
 1568                }
 1569            }
 1570
 1571            // Get project paths for all of the abs_paths
 1572            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1573                Vec::with_capacity(paths_to_open.len());
 1574
 1575            for path in paths_to_open.into_iter() {
 1576                if let Some((_, project_entry)) = cx
 1577                    .update(|cx| {
 1578                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1579                    })?
 1580                    .await
 1581                    .log_err()
 1582                {
 1583                    project_paths.push((path, Some(project_entry)));
 1584                } else {
 1585                    project_paths.push((path, None));
 1586                }
 1587            }
 1588
 1589            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1590                serialized_workspace.id
 1591            } else {
 1592                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1593            };
 1594
 1595            let toolchains = DB.toolchains(workspace_id).await?;
 1596
 1597            for (toolchain, worktree_id, path) in toolchains {
 1598                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1599                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1600                    continue;
 1601                }
 1602
 1603                project_handle
 1604                    .update(cx, |this, cx| {
 1605                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1606                    })?
 1607                    .await;
 1608            }
 1609            if let Some(workspace) = serialized_workspace.as_ref() {
 1610                project_handle.update(cx, |this, cx| {
 1611                    for (scope, toolchains) in &workspace.user_toolchains {
 1612                        for toolchain in toolchains {
 1613                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1614                        }
 1615                    }
 1616                })?;
 1617            }
 1618
 1619            let window = if let Some(window) = requesting_window {
 1620                let centered_layout = serialized_workspace
 1621                    .as_ref()
 1622                    .map(|w| w.centered_layout)
 1623                    .unwrap_or(false);
 1624
 1625                cx.update_window(window.into(), |_, window, cx| {
 1626                    window.replace_root(cx, |window, cx| {
 1627                        let mut workspace = Workspace::new(
 1628                            Some(workspace_id),
 1629                            project_handle.clone(),
 1630                            app_state.clone(),
 1631                            window,
 1632                            cx,
 1633                        );
 1634
 1635                        workspace.centered_layout = centered_layout;
 1636                        workspace
 1637                    });
 1638                })?;
 1639                window
 1640            } else {
 1641                let window_bounds_override = window_bounds_env_override();
 1642
 1643                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1644                    (Some(WindowBounds::Windowed(bounds)), None)
 1645                } else if let Some(workspace) = serialized_workspace.as_ref() {
 1646                    // Reopening an existing workspace - restore its saved bounds
 1647                    if let (Some(display), Some(bounds)) =
 1648                        (workspace.display, workspace.window_bounds.as_ref())
 1649                    {
 1650                        (Some(bounds.0), Some(display))
 1651                    } else {
 1652                        (None, None)
 1653                    }
 1654                } else {
 1655                    // New window - let GPUI's default_bounds() handle cascading
 1656                    (None, None)
 1657                };
 1658
 1659                // Use the serialized workspace to construct the new window
 1660                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1661                options.window_bounds = window_bounds;
 1662                let centered_layout = serialized_workspace
 1663                    .as_ref()
 1664                    .map(|w| w.centered_layout)
 1665                    .unwrap_or(false);
 1666                cx.open_window(options, {
 1667                    let app_state = app_state.clone();
 1668                    let project_handle = project_handle.clone();
 1669                    move |window, cx| {
 1670                        cx.new(|cx| {
 1671                            let mut workspace = Workspace::new(
 1672                                Some(workspace_id),
 1673                                project_handle,
 1674                                app_state,
 1675                                window,
 1676                                cx,
 1677                            );
 1678                            workspace.centered_layout = centered_layout;
 1679                            workspace
 1680                        })
 1681                    }
 1682                })?
 1683            };
 1684
 1685            notify_if_database_failed(window, cx);
 1686            let opened_items = window
 1687                .update(cx, |_workspace, window, cx| {
 1688                    open_items(serialized_workspace, project_paths, window, cx)
 1689                })?
 1690                .await
 1691                .unwrap_or_default();
 1692
 1693            window
 1694                .update(cx, |workspace, window, cx| {
 1695                    window.activate_window();
 1696                    workspace.update_history(cx);
 1697                })
 1698                .log_err();
 1699            Ok((window, opened_items))
 1700        })
 1701    }
 1702
 1703    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1704        self.weak_self.clone()
 1705    }
 1706
 1707    pub fn left_dock(&self) -> &Entity<Dock> {
 1708        &self.left_dock
 1709    }
 1710
 1711    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1712        &self.bottom_dock
 1713    }
 1714
 1715    pub fn set_bottom_dock_layout(
 1716        &mut self,
 1717        layout: BottomDockLayout,
 1718        window: &mut Window,
 1719        cx: &mut Context<Self>,
 1720    ) {
 1721        let fs = self.project().read(cx).fs();
 1722        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1723            content.workspace.bottom_dock_layout = Some(layout);
 1724        });
 1725
 1726        cx.notify();
 1727        self.serialize_workspace(window, cx);
 1728    }
 1729
 1730    pub fn right_dock(&self) -> &Entity<Dock> {
 1731        &self.right_dock
 1732    }
 1733
 1734    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1735        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1736    }
 1737
 1738    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1739        match position {
 1740            DockPosition::Left => &self.left_dock,
 1741            DockPosition::Bottom => &self.bottom_dock,
 1742            DockPosition::Right => &self.right_dock,
 1743        }
 1744    }
 1745
 1746    pub fn is_edited(&self) -> bool {
 1747        self.window_edited
 1748    }
 1749
 1750    pub fn add_panel<T: Panel>(
 1751        &mut self,
 1752        panel: Entity<T>,
 1753        window: &mut Window,
 1754        cx: &mut Context<Self>,
 1755    ) {
 1756        let focus_handle = panel.panel_focus_handle(cx);
 1757        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1758            .detach();
 1759
 1760        let dock_position = panel.position(window, cx);
 1761        let dock = self.dock_at_position(dock_position);
 1762
 1763        dock.update(cx, |dock, cx| {
 1764            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1765        });
 1766    }
 1767
 1768    pub fn remove_panel<T: Panel>(
 1769        &mut self,
 1770        panel: &Entity<T>,
 1771        window: &mut Window,
 1772        cx: &mut Context<Self>,
 1773    ) {
 1774        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1775            dock.update(cx, |dock, cx| {
 1776                dock.remove_panel(panel, window, cx);
 1777            })
 1778        }
 1779    }
 1780
 1781    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1782        &self.status_bar
 1783    }
 1784
 1785    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1786        StatusBarSettings::get_global(cx).show
 1787    }
 1788
 1789    pub fn app_state(&self) -> &Arc<AppState> {
 1790        &self.app_state
 1791    }
 1792
 1793    pub fn user_store(&self) -> &Entity<UserStore> {
 1794        &self.app_state.user_store
 1795    }
 1796
 1797    pub fn project(&self) -> &Entity<Project> {
 1798        &self.project
 1799    }
 1800
 1801    pub fn path_style(&self, cx: &App) -> PathStyle {
 1802        self.project.read(cx).path_style(cx)
 1803    }
 1804
 1805    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1806        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1807
 1808        for pane_handle in &self.panes {
 1809            let pane = pane_handle.read(cx);
 1810
 1811            for entry in pane.activation_history() {
 1812                history.insert(
 1813                    entry.entity_id,
 1814                    history
 1815                        .get(&entry.entity_id)
 1816                        .cloned()
 1817                        .unwrap_or(0)
 1818                        .max(entry.timestamp),
 1819                );
 1820            }
 1821        }
 1822
 1823        history
 1824    }
 1825
 1826    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1827        let mut recent_item: Option<Entity<T>> = None;
 1828        let mut recent_timestamp = 0;
 1829        for pane_handle in &self.panes {
 1830            let pane = pane_handle.read(cx);
 1831            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1832                pane.items().map(|item| (item.item_id(), item)).collect();
 1833            for entry in pane.activation_history() {
 1834                if entry.timestamp > recent_timestamp
 1835                    && let Some(&item) = item_map.get(&entry.entity_id)
 1836                    && let Some(typed_item) = item.act_as::<T>(cx)
 1837                {
 1838                    recent_timestamp = entry.timestamp;
 1839                    recent_item = Some(typed_item);
 1840                }
 1841            }
 1842        }
 1843        recent_item
 1844    }
 1845
 1846    pub fn recent_navigation_history_iter(
 1847        &self,
 1848        cx: &App,
 1849    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1850        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1851        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1852
 1853        for pane in &self.panes {
 1854            let pane = pane.read(cx);
 1855
 1856            pane.nav_history()
 1857                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1858                    if let Some(fs_path) = &fs_path {
 1859                        abs_paths_opened
 1860                            .entry(fs_path.clone())
 1861                            .or_default()
 1862                            .insert(project_path.clone());
 1863                    }
 1864                    let timestamp = entry.timestamp;
 1865                    match history.entry(project_path) {
 1866                        hash_map::Entry::Occupied(mut entry) => {
 1867                            let (_, old_timestamp) = entry.get();
 1868                            if &timestamp > old_timestamp {
 1869                                entry.insert((fs_path, timestamp));
 1870                            }
 1871                        }
 1872                        hash_map::Entry::Vacant(entry) => {
 1873                            entry.insert((fs_path, timestamp));
 1874                        }
 1875                    }
 1876                });
 1877
 1878            if let Some(item) = pane.active_item()
 1879                && let Some(project_path) = item.project_path(cx)
 1880            {
 1881                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1882
 1883                if let Some(fs_path) = &fs_path {
 1884                    abs_paths_opened
 1885                        .entry(fs_path.clone())
 1886                        .or_default()
 1887                        .insert(project_path.clone());
 1888                }
 1889
 1890                history.insert(project_path, (fs_path, std::usize::MAX));
 1891            }
 1892        }
 1893
 1894        history
 1895            .into_iter()
 1896            .sorted_by_key(|(_, (_, order))| *order)
 1897            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1898            .rev()
 1899            .filter(move |(history_path, abs_path)| {
 1900                let latest_project_path_opened = abs_path
 1901                    .as_ref()
 1902                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1903                    .and_then(|project_paths| {
 1904                        project_paths
 1905                            .iter()
 1906                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1907                    });
 1908
 1909                latest_project_path_opened.is_none_or(|path| path == history_path)
 1910            })
 1911    }
 1912
 1913    pub fn recent_navigation_history(
 1914        &self,
 1915        limit: Option<usize>,
 1916        cx: &App,
 1917    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1918        self.recent_navigation_history_iter(cx)
 1919            .take(limit.unwrap_or(usize::MAX))
 1920            .collect()
 1921    }
 1922
 1923    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 1924        for pane in &self.panes {
 1925            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 1926        }
 1927    }
 1928
 1929    fn navigate_history(
 1930        &mut self,
 1931        pane: WeakEntity<Pane>,
 1932        mode: NavigationMode,
 1933        window: &mut Window,
 1934        cx: &mut Context<Workspace>,
 1935    ) -> Task<Result<()>> {
 1936        let to_load = if let Some(pane) = pane.upgrade() {
 1937            pane.update(cx, |pane, cx| {
 1938                window.focus(&pane.focus_handle(cx));
 1939                loop {
 1940                    // Retrieve the weak item handle from the history.
 1941                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1942
 1943                    // If the item is still present in this pane, then activate it.
 1944                    if let Some(index) = entry
 1945                        .item
 1946                        .upgrade()
 1947                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1948                    {
 1949                        let prev_active_item_index = pane.active_item_index();
 1950                        pane.nav_history_mut().set_mode(mode);
 1951                        pane.activate_item(index, true, true, window, cx);
 1952                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1953
 1954                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1955                        if let Some(data) = entry.data {
 1956                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1957                        }
 1958
 1959                        if navigated {
 1960                            break None;
 1961                        }
 1962                    } else {
 1963                        // If the item is no longer present in this pane, then retrieve its
 1964                        // path info in order to reopen it.
 1965                        break pane
 1966                            .nav_history()
 1967                            .path_for_item(entry.item.id())
 1968                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1969                    }
 1970                }
 1971            })
 1972        } else {
 1973            None
 1974        };
 1975
 1976        if let Some((project_path, abs_path, entry)) = to_load {
 1977            // If the item was no longer present, then load it again from its previous path, first try the local path
 1978            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1979
 1980            cx.spawn_in(window, async move  |workspace, cx| {
 1981                let open_by_project_path = open_by_project_path.await;
 1982                let mut navigated = false;
 1983                match open_by_project_path
 1984                    .with_context(|| format!("Navigating to {project_path:?}"))
 1985                {
 1986                    Ok((project_entry_id, build_item)) => {
 1987                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1988                            pane.nav_history_mut().set_mode(mode);
 1989                            pane.active_item().map(|p| p.item_id())
 1990                        })?;
 1991
 1992                        pane.update_in(cx, |pane, window, cx| {
 1993                            let item = pane.open_item(
 1994                                project_entry_id,
 1995                                project_path,
 1996                                true,
 1997                                entry.is_preview,
 1998                                true,
 1999                                None,
 2000                                window, cx,
 2001                                build_item,
 2002                            );
 2003                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2004                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2005                            if let Some(data) = entry.data {
 2006                                navigated |= item.navigate(data, window, cx);
 2007                            }
 2008                        })?;
 2009                    }
 2010                    Err(open_by_project_path_e) => {
 2011                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2012                        // and its worktree is now dropped
 2013                        if let Some(abs_path) = abs_path {
 2014                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2015                                pane.nav_history_mut().set_mode(mode);
 2016                                pane.active_item().map(|p| p.item_id())
 2017                            })?;
 2018                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2019                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2020                            })?;
 2021                            match open_by_abs_path
 2022                                .await
 2023                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2024                            {
 2025                                Ok(item) => {
 2026                                    pane.update_in(cx, |pane, window, cx| {
 2027                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2028                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2029                                        if let Some(data) = entry.data {
 2030                                            navigated |= item.navigate(data, window, cx);
 2031                                        }
 2032                                    })?;
 2033                                }
 2034                                Err(open_by_abs_path_e) => {
 2035                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2036                                }
 2037                            }
 2038                        }
 2039                    }
 2040                }
 2041
 2042                if !navigated {
 2043                    workspace
 2044                        .update_in(cx, |workspace, window, cx| {
 2045                            Self::navigate_history(workspace, pane, mode, window, cx)
 2046                        })?
 2047                        .await?;
 2048                }
 2049
 2050                Ok(())
 2051            })
 2052        } else {
 2053            Task::ready(Ok(()))
 2054        }
 2055    }
 2056
 2057    pub fn go_back(
 2058        &mut self,
 2059        pane: WeakEntity<Pane>,
 2060        window: &mut Window,
 2061        cx: &mut Context<Workspace>,
 2062    ) -> Task<Result<()>> {
 2063        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2064    }
 2065
 2066    pub fn go_forward(
 2067        &mut self,
 2068        pane: WeakEntity<Pane>,
 2069        window: &mut Window,
 2070        cx: &mut Context<Workspace>,
 2071    ) -> Task<Result<()>> {
 2072        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2073    }
 2074
 2075    pub fn reopen_closed_item(
 2076        &mut self,
 2077        window: &mut Window,
 2078        cx: &mut Context<Workspace>,
 2079    ) -> Task<Result<()>> {
 2080        self.navigate_history(
 2081            self.active_pane().downgrade(),
 2082            NavigationMode::ReopeningClosedItem,
 2083            window,
 2084            cx,
 2085        )
 2086    }
 2087
 2088    pub fn client(&self) -> &Arc<Client> {
 2089        &self.app_state.client
 2090    }
 2091
 2092    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2093        self.titlebar_item = Some(item);
 2094        cx.notify();
 2095    }
 2096
 2097    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2098        self.on_prompt_for_new_path = Some(prompt)
 2099    }
 2100
 2101    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2102        self.on_prompt_for_open_path = Some(prompt)
 2103    }
 2104
 2105    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2106        self.terminal_provider = Some(Box::new(provider));
 2107    }
 2108
 2109    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2110        self.debugger_provider = Some(Arc::new(provider));
 2111    }
 2112
 2113    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2114        self.debugger_provider.clone()
 2115    }
 2116
 2117    pub fn prompt_for_open_path(
 2118        &mut self,
 2119        path_prompt_options: PathPromptOptions,
 2120        lister: DirectoryLister,
 2121        window: &mut Window,
 2122        cx: &mut Context<Self>,
 2123    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2124        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2125            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2126            let rx = prompt(self, lister, window, cx);
 2127            self.on_prompt_for_open_path = Some(prompt);
 2128            rx
 2129        } else {
 2130            let (tx, rx) = oneshot::channel();
 2131            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2132
 2133            cx.spawn_in(window, async move |workspace, cx| {
 2134                let Ok(result) = abs_path.await else {
 2135                    return Ok(());
 2136                };
 2137
 2138                match result {
 2139                    Ok(result) => {
 2140                        tx.send(result).ok();
 2141                    }
 2142                    Err(err) => {
 2143                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2144                            workspace.show_portal_error(err.to_string(), cx);
 2145                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2146                            let rx = prompt(workspace, lister, window, cx);
 2147                            workspace.on_prompt_for_open_path = Some(prompt);
 2148                            rx
 2149                        })?;
 2150                        if let Ok(path) = rx.await {
 2151                            tx.send(path).ok();
 2152                        }
 2153                    }
 2154                };
 2155                anyhow::Ok(())
 2156            })
 2157            .detach();
 2158
 2159            rx
 2160        }
 2161    }
 2162
 2163    pub fn prompt_for_new_path(
 2164        &mut self,
 2165        lister: DirectoryLister,
 2166        suggested_name: Option<String>,
 2167        window: &mut Window,
 2168        cx: &mut Context<Self>,
 2169    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2170        if self.project.read(cx).is_via_collab()
 2171            || self.project.read(cx).is_via_remote_server()
 2172            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2173        {
 2174            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2175            let rx = prompt(self, lister, window, cx);
 2176            self.on_prompt_for_new_path = Some(prompt);
 2177            return rx;
 2178        }
 2179
 2180        let (tx, rx) = oneshot::channel();
 2181        cx.spawn_in(window, async move |workspace, cx| {
 2182            let abs_path = workspace.update(cx, |workspace, cx| {
 2183                let relative_to = workspace
 2184                    .most_recent_active_path(cx)
 2185                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2186                    .or_else(|| {
 2187                        let project = workspace.project.read(cx);
 2188                        project.visible_worktrees(cx).find_map(|worktree| {
 2189                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2190                        })
 2191                    })
 2192                    .or_else(std::env::home_dir)
 2193                    .unwrap_or_else(|| PathBuf::from(""));
 2194                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2195            })?;
 2196            let abs_path = match abs_path.await? {
 2197                Ok(path) => path,
 2198                Err(err) => {
 2199                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2200                        workspace.show_portal_error(err.to_string(), cx);
 2201
 2202                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2203                        let rx = prompt(workspace, lister, window, cx);
 2204                        workspace.on_prompt_for_new_path = Some(prompt);
 2205                        rx
 2206                    })?;
 2207                    if let Ok(path) = rx.await {
 2208                        tx.send(path).ok();
 2209                    }
 2210                    return anyhow::Ok(());
 2211                }
 2212            };
 2213
 2214            tx.send(abs_path.map(|path| vec![path])).ok();
 2215            anyhow::Ok(())
 2216        })
 2217        .detach();
 2218
 2219        rx
 2220    }
 2221
 2222    pub fn titlebar_item(&self) -> Option<AnyView> {
 2223        self.titlebar_item.clone()
 2224    }
 2225
 2226    /// Call the given callback with a workspace whose project is local.
 2227    ///
 2228    /// If the given workspace has a local project, then it will be passed
 2229    /// to the callback. Otherwise, a new empty window will be created.
 2230    pub fn with_local_workspace<T, F>(
 2231        &mut self,
 2232        window: &mut Window,
 2233        cx: &mut Context<Self>,
 2234        callback: F,
 2235    ) -> Task<Result<T>>
 2236    where
 2237        T: 'static,
 2238        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2239    {
 2240        if self.project.read(cx).is_local() {
 2241            Task::ready(Ok(callback(self, window, cx)))
 2242        } else {
 2243            let env = self.project.read(cx).cli_environment(cx);
 2244            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2245            cx.spawn_in(window, async move |_vh, cx| {
 2246                let (workspace, _) = task.await?;
 2247                workspace.update(cx, callback)
 2248            })
 2249        }
 2250    }
 2251
 2252    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2253        self.project.read(cx).worktrees(cx)
 2254    }
 2255
 2256    pub fn visible_worktrees<'a>(
 2257        &self,
 2258        cx: &'a App,
 2259    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2260        self.project.read(cx).visible_worktrees(cx)
 2261    }
 2262
 2263    #[cfg(any(test, feature = "test-support"))]
 2264    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2265        let futures = self
 2266            .worktrees(cx)
 2267            .filter_map(|worktree| worktree.read(cx).as_local())
 2268            .map(|worktree| worktree.scan_complete())
 2269            .collect::<Vec<_>>();
 2270        async move {
 2271            for future in futures {
 2272                future.await;
 2273            }
 2274        }
 2275    }
 2276
 2277    pub fn close_global(cx: &mut App) {
 2278        cx.defer(|cx| {
 2279            cx.windows().iter().find(|window| {
 2280                window
 2281                    .update(cx, |_, window, _| {
 2282                        if window.is_window_active() {
 2283                            //This can only get called when the window's project connection has been lost
 2284                            //so we don't need to prompt the user for anything and instead just close the window
 2285                            window.remove_window();
 2286                            true
 2287                        } else {
 2288                            false
 2289                        }
 2290                    })
 2291                    .unwrap_or(false)
 2292            });
 2293        });
 2294    }
 2295
 2296    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2297        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2298        cx.spawn_in(window, async move |_, cx| {
 2299            if prepare.await? {
 2300                cx.update(|window, _cx| window.remove_window())?;
 2301            }
 2302            anyhow::Ok(())
 2303        })
 2304        .detach_and_log_err(cx)
 2305    }
 2306
 2307    pub fn move_focused_panel_to_next_position(
 2308        &mut self,
 2309        _: &MoveFocusedPanelToNextPosition,
 2310        window: &mut Window,
 2311        cx: &mut Context<Self>,
 2312    ) {
 2313        let docks = self.all_docks();
 2314        let active_dock = docks
 2315            .into_iter()
 2316            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2317
 2318        if let Some(dock) = active_dock {
 2319            dock.update(cx, |dock, cx| {
 2320                let active_panel = dock
 2321                    .active_panel()
 2322                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2323
 2324                if let Some(panel) = active_panel {
 2325                    panel.move_to_next_position(window, cx);
 2326                }
 2327            })
 2328        }
 2329    }
 2330
 2331    pub fn prepare_to_close(
 2332        &mut self,
 2333        close_intent: CloseIntent,
 2334        window: &mut Window,
 2335        cx: &mut Context<Self>,
 2336    ) -> Task<Result<bool>> {
 2337        let active_call = self.active_call().cloned();
 2338
 2339        cx.spawn_in(window, async move |this, cx| {
 2340            this.update(cx, |this, _| {
 2341                if close_intent == CloseIntent::CloseWindow {
 2342                    this.removing = true;
 2343                }
 2344            })?;
 2345
 2346            let workspace_count = cx.update(|_window, cx| {
 2347                cx.windows()
 2348                    .iter()
 2349                    .filter(|window| window.downcast::<Workspace>().is_some())
 2350                    .count()
 2351            })?;
 2352
 2353            #[cfg(target_os = "macos")]
 2354            let save_last_workspace = false;
 2355
 2356            // On Linux and Windows, closing the last window should restore the last workspace.
 2357            #[cfg(not(target_os = "macos"))]
 2358            let save_last_workspace = {
 2359                let remaining_workspaces = cx.update(|_window, cx| {
 2360                    cx.windows()
 2361                        .iter()
 2362                        .filter_map(|window| window.downcast::<Workspace>())
 2363                        .filter_map(|workspace| {
 2364                            workspace
 2365                                .update(cx, |workspace, _, _| workspace.removing)
 2366                                .ok()
 2367                        })
 2368                        .filter(|removing| !removing)
 2369                        .count()
 2370                })?;
 2371
 2372                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2373            };
 2374
 2375            if let Some(active_call) = active_call
 2376                && workspace_count == 1
 2377                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2378            {
 2379                if close_intent == CloseIntent::CloseWindow {
 2380                    let answer = cx.update(|window, cx| {
 2381                        window.prompt(
 2382                            PromptLevel::Warning,
 2383                            "Do you want to leave the current call?",
 2384                            None,
 2385                            &["Close window and hang up", "Cancel"],
 2386                            cx,
 2387                        )
 2388                    })?;
 2389
 2390                    if answer.await.log_err() == Some(1) {
 2391                        return anyhow::Ok(false);
 2392                    } else {
 2393                        active_call
 2394                            .update(cx, |call, cx| call.hang_up(cx))?
 2395                            .await
 2396                            .log_err();
 2397                    }
 2398                }
 2399                if close_intent == CloseIntent::ReplaceWindow {
 2400                    _ = active_call.update(cx, |this, cx| {
 2401                        let workspace = cx
 2402                            .windows()
 2403                            .iter()
 2404                            .filter_map(|window| window.downcast::<Workspace>())
 2405                            .next()
 2406                            .unwrap();
 2407                        let project = workspace.read(cx)?.project.clone();
 2408                        if project.read(cx).is_shared() {
 2409                            this.unshare_project(project, cx)?;
 2410                        }
 2411                        Ok::<_, anyhow::Error>(())
 2412                    })?;
 2413                }
 2414            }
 2415
 2416            let save_result = this
 2417                .update_in(cx, |this, window, cx| {
 2418                    this.save_all_internal(SaveIntent::Close, window, cx)
 2419                })?
 2420                .await;
 2421
 2422            // If we're not quitting, but closing, we remove the workspace from
 2423            // the current session.
 2424            if close_intent != CloseIntent::Quit
 2425                && !save_last_workspace
 2426                && save_result.as_ref().is_ok_and(|&res| res)
 2427            {
 2428                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2429                    .await;
 2430            }
 2431
 2432            save_result
 2433        })
 2434    }
 2435
 2436    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2437        self.save_all_internal(
 2438            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2439            window,
 2440            cx,
 2441        )
 2442        .detach_and_log_err(cx);
 2443    }
 2444
 2445    fn send_keystrokes(
 2446        &mut self,
 2447        action: &SendKeystrokes,
 2448        window: &mut Window,
 2449        cx: &mut Context<Self>,
 2450    ) {
 2451        let keystrokes: Vec<Keystroke> = action
 2452            .0
 2453            .split(' ')
 2454            .flat_map(|k| Keystroke::parse(k).log_err())
 2455            .map(|k| {
 2456                cx.keyboard_mapper()
 2457                    .map_key_equivalent(k, true)
 2458                    .inner()
 2459                    .clone()
 2460            })
 2461            .collect();
 2462        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2463    }
 2464
 2465    pub fn send_keystrokes_impl(
 2466        &mut self,
 2467        keystrokes: Vec<Keystroke>,
 2468        window: &mut Window,
 2469        cx: &mut Context<Self>,
 2470    ) -> Shared<Task<()>> {
 2471        let mut state = self.dispatching_keystrokes.borrow_mut();
 2472        if !state.dispatched.insert(keystrokes.clone()) {
 2473            cx.propagate();
 2474            return state.task.clone().unwrap();
 2475        }
 2476
 2477        state.queue.extend(keystrokes);
 2478
 2479        let keystrokes = self.dispatching_keystrokes.clone();
 2480        if state.task.is_none() {
 2481            state.task = Some(
 2482                window
 2483                    .spawn(cx, async move |cx| {
 2484                        // limit to 100 keystrokes to avoid infinite recursion.
 2485                        for _ in 0..100 {
 2486                            let mut state = keystrokes.borrow_mut();
 2487                            let Some(keystroke) = state.queue.pop_front() else {
 2488                                state.dispatched.clear();
 2489                                state.task.take();
 2490                                return;
 2491                            };
 2492                            drop(state);
 2493                            cx.update(|window, cx| {
 2494                                let focused = window.focused(cx);
 2495                                window.dispatch_keystroke(keystroke.clone(), cx);
 2496                                if window.focused(cx) != focused {
 2497                                    // dispatch_keystroke may cause the focus to change.
 2498                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2499                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2500                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2501                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2502                                    // )
 2503                                    window.draw(cx).clear();
 2504                                }
 2505                            })
 2506                            .ok();
 2507                        }
 2508
 2509                        *keystrokes.borrow_mut() = Default::default();
 2510                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2511                    })
 2512                    .shared(),
 2513            );
 2514        }
 2515        state.task.clone().unwrap()
 2516    }
 2517
 2518    fn save_all_internal(
 2519        &mut self,
 2520        mut save_intent: SaveIntent,
 2521        window: &mut Window,
 2522        cx: &mut Context<Self>,
 2523    ) -> Task<Result<bool>> {
 2524        if self.project.read(cx).is_disconnected(cx) {
 2525            return Task::ready(Ok(true));
 2526        }
 2527        let dirty_items = self
 2528            .panes
 2529            .iter()
 2530            .flat_map(|pane| {
 2531                pane.read(cx).items().filter_map(|item| {
 2532                    if item.is_dirty(cx) {
 2533                        item.tab_content_text(0, cx);
 2534                        Some((pane.downgrade(), item.boxed_clone()))
 2535                    } else {
 2536                        None
 2537                    }
 2538                })
 2539            })
 2540            .collect::<Vec<_>>();
 2541
 2542        let project = self.project.clone();
 2543        cx.spawn_in(window, async move |workspace, cx| {
 2544            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2545                let (serialize_tasks, remaining_dirty_items) =
 2546                    workspace.update_in(cx, |workspace, window, cx| {
 2547                        let mut remaining_dirty_items = Vec::new();
 2548                        let mut serialize_tasks = Vec::new();
 2549                        for (pane, item) in dirty_items {
 2550                            if let Some(task) = item
 2551                                .to_serializable_item_handle(cx)
 2552                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2553                            {
 2554                                serialize_tasks.push(task);
 2555                            } else {
 2556                                remaining_dirty_items.push((pane, item));
 2557                            }
 2558                        }
 2559                        (serialize_tasks, remaining_dirty_items)
 2560                    })?;
 2561
 2562                futures::future::try_join_all(serialize_tasks).await?;
 2563
 2564                if remaining_dirty_items.len() > 1 {
 2565                    let answer = workspace.update_in(cx, |_, window, cx| {
 2566                        let detail = Pane::file_names_for_prompt(
 2567                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2568                            cx,
 2569                        );
 2570                        window.prompt(
 2571                            PromptLevel::Warning,
 2572                            "Do you want to save all changes in the following files?",
 2573                            Some(&detail),
 2574                            &["Save all", "Discard all", "Cancel"],
 2575                            cx,
 2576                        )
 2577                    })?;
 2578                    match answer.await.log_err() {
 2579                        Some(0) => save_intent = SaveIntent::SaveAll,
 2580                        Some(1) => save_intent = SaveIntent::Skip,
 2581                        Some(2) => return Ok(false),
 2582                        _ => {}
 2583                    }
 2584                }
 2585
 2586                remaining_dirty_items
 2587            } else {
 2588                dirty_items
 2589            };
 2590
 2591            for (pane, item) in dirty_items {
 2592                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2593                    (
 2594                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2595                        item.project_entry_ids(cx),
 2596                    )
 2597                })?;
 2598                if (singleton || !project_entry_ids.is_empty())
 2599                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2600                {
 2601                    return Ok(false);
 2602                }
 2603            }
 2604            Ok(true)
 2605        })
 2606    }
 2607
 2608    pub fn open_workspace_for_paths(
 2609        &mut self,
 2610        replace_current_window: bool,
 2611        paths: Vec<PathBuf>,
 2612        window: &mut Window,
 2613        cx: &mut Context<Self>,
 2614    ) -> Task<Result<()>> {
 2615        let window_handle = window.window_handle().downcast::<Self>();
 2616        let is_remote = self.project.read(cx).is_via_collab();
 2617        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2618        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2619
 2620        let window_to_replace = if replace_current_window {
 2621            window_handle
 2622        } else if is_remote || has_worktree || has_dirty_items {
 2623            None
 2624        } else {
 2625            window_handle
 2626        };
 2627        let app_state = self.app_state.clone();
 2628
 2629        cx.spawn(async move |_, cx| {
 2630            cx.update(|cx| {
 2631                open_paths(
 2632                    &paths,
 2633                    app_state,
 2634                    OpenOptions {
 2635                        replace_window: window_to_replace,
 2636                        ..Default::default()
 2637                    },
 2638                    cx,
 2639                )
 2640            })?
 2641            .await?;
 2642            Ok(())
 2643        })
 2644    }
 2645
 2646    #[allow(clippy::type_complexity)]
 2647    pub fn open_paths(
 2648        &mut self,
 2649        mut abs_paths: Vec<PathBuf>,
 2650        options: OpenOptions,
 2651        pane: Option<WeakEntity<Pane>>,
 2652        window: &mut Window,
 2653        cx: &mut Context<Self>,
 2654    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2655        let fs = self.app_state.fs.clone();
 2656
 2657        // Sort the paths to ensure we add worktrees for parents before their children.
 2658        abs_paths.sort_unstable();
 2659        cx.spawn_in(window, async move |this, cx| {
 2660            let mut tasks = Vec::with_capacity(abs_paths.len());
 2661
 2662            for abs_path in &abs_paths {
 2663                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2664                    OpenVisible::All => Some(true),
 2665                    OpenVisible::None => Some(false),
 2666                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2667                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2668                        Some(None) => Some(true),
 2669                        None => None,
 2670                    },
 2671                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2672                        Some(Some(metadata)) => Some(metadata.is_dir),
 2673                        Some(None) => Some(false),
 2674                        None => None,
 2675                    },
 2676                };
 2677                let project_path = match visible {
 2678                    Some(visible) => match this
 2679                        .update(cx, |this, cx| {
 2680                            Workspace::project_path_for_path(
 2681                                this.project.clone(),
 2682                                abs_path,
 2683                                visible,
 2684                                cx,
 2685                            )
 2686                        })
 2687                        .log_err()
 2688                    {
 2689                        Some(project_path) => project_path.await.log_err(),
 2690                        None => None,
 2691                    },
 2692                    None => None,
 2693                };
 2694
 2695                let this = this.clone();
 2696                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2697                let fs = fs.clone();
 2698                let pane = pane.clone();
 2699                let task = cx.spawn(async move |cx| {
 2700                    let (worktree, project_path) = project_path?;
 2701                    if fs.is_dir(&abs_path).await {
 2702                        this.update(cx, |workspace, cx| {
 2703                            let worktree = worktree.read(cx);
 2704                            let worktree_abs_path = worktree.abs_path();
 2705                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2706                                worktree.root_entry()
 2707                            } else {
 2708                                abs_path
 2709                                    .strip_prefix(worktree_abs_path.as_ref())
 2710                                    .ok()
 2711                                    .and_then(|relative_path| {
 2712                                        let relative_path =
 2713                                            RelPath::new(relative_path, PathStyle::local())
 2714                                                .log_err()?;
 2715                                        worktree.entry_for_path(&relative_path)
 2716                                    })
 2717                            }
 2718                            .map(|entry| entry.id);
 2719                            if let Some(entry_id) = entry_id {
 2720                                workspace.project.update(cx, |_, cx| {
 2721                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2722                                })
 2723                            }
 2724                        })
 2725                        .ok()?;
 2726                        None
 2727                    } else {
 2728                        Some(
 2729                            this.update_in(cx, |this, window, cx| {
 2730                                this.open_path(
 2731                                    project_path,
 2732                                    pane,
 2733                                    options.focus.unwrap_or(true),
 2734                                    window,
 2735                                    cx,
 2736                                )
 2737                            })
 2738                            .ok()?
 2739                            .await,
 2740                        )
 2741                    }
 2742                });
 2743                tasks.push(task);
 2744            }
 2745
 2746            futures::future::join_all(tasks).await
 2747        })
 2748    }
 2749
 2750    pub fn open_resolved_path(
 2751        &mut self,
 2752        path: ResolvedPath,
 2753        window: &mut Window,
 2754        cx: &mut Context<Self>,
 2755    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2756        match path {
 2757            ResolvedPath::ProjectPath { project_path, .. } => {
 2758                self.open_path(project_path, None, true, window, cx)
 2759            }
 2760            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2761                PathBuf::from(path),
 2762                OpenOptions {
 2763                    visible: Some(OpenVisible::None),
 2764                    ..Default::default()
 2765                },
 2766                window,
 2767                cx,
 2768            ),
 2769        }
 2770    }
 2771
 2772    pub fn absolute_path_of_worktree(
 2773        &self,
 2774        worktree_id: WorktreeId,
 2775        cx: &mut Context<Self>,
 2776    ) -> Option<PathBuf> {
 2777        self.project
 2778            .read(cx)
 2779            .worktree_for_id(worktree_id, cx)
 2780            // TODO: use `abs_path` or `root_dir`
 2781            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2782    }
 2783
 2784    fn add_folder_to_project(
 2785        &mut self,
 2786        _: &AddFolderToProject,
 2787        window: &mut Window,
 2788        cx: &mut Context<Self>,
 2789    ) {
 2790        let project = self.project.read(cx);
 2791        if project.is_via_collab() {
 2792            self.show_error(
 2793                &anyhow!("You cannot add folders to someone else's project"),
 2794                cx,
 2795            );
 2796            return;
 2797        }
 2798        let paths = self.prompt_for_open_path(
 2799            PathPromptOptions {
 2800                files: false,
 2801                directories: true,
 2802                multiple: true,
 2803                prompt: None,
 2804            },
 2805            DirectoryLister::Project(self.project.clone()),
 2806            window,
 2807            cx,
 2808        );
 2809        cx.spawn_in(window, async move |this, cx| {
 2810            if let Some(paths) = paths.await.log_err().flatten() {
 2811                let results = this
 2812                    .update_in(cx, |this, window, cx| {
 2813                        this.open_paths(
 2814                            paths,
 2815                            OpenOptions {
 2816                                visible: Some(OpenVisible::All),
 2817                                ..Default::default()
 2818                            },
 2819                            None,
 2820                            window,
 2821                            cx,
 2822                        )
 2823                    })?
 2824                    .await;
 2825                for result in results.into_iter().flatten() {
 2826                    result.log_err();
 2827                }
 2828            }
 2829            anyhow::Ok(())
 2830        })
 2831        .detach_and_log_err(cx);
 2832    }
 2833
 2834    pub fn project_path_for_path(
 2835        project: Entity<Project>,
 2836        abs_path: &Path,
 2837        visible: bool,
 2838        cx: &mut App,
 2839    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2840        let entry = project.update(cx, |project, cx| {
 2841            project.find_or_create_worktree(abs_path, visible, cx)
 2842        });
 2843        cx.spawn(async move |cx| {
 2844            let (worktree, path) = entry.await?;
 2845            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2846            Ok((
 2847                worktree,
 2848                ProjectPath {
 2849                    worktree_id,
 2850                    path: path,
 2851                },
 2852            ))
 2853        })
 2854    }
 2855
 2856    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2857        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2858    }
 2859
 2860    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2861        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2862    }
 2863
 2864    pub fn items_of_type<'a, T: Item>(
 2865        &'a self,
 2866        cx: &'a App,
 2867    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2868        self.panes
 2869            .iter()
 2870            .flat_map(|pane| pane.read(cx).items_of_type())
 2871    }
 2872
 2873    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2874        self.active_pane().read(cx).active_item()
 2875    }
 2876
 2877    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2878        let item = self.active_item(cx)?;
 2879        item.to_any_view().downcast::<I>().ok()
 2880    }
 2881
 2882    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2883        self.active_item(cx).and_then(|item| item.project_path(cx))
 2884    }
 2885
 2886    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2887        self.recent_navigation_history_iter(cx)
 2888            .filter_map(|(path, abs_path)| {
 2889                let worktree = self
 2890                    .project
 2891                    .read(cx)
 2892                    .worktree_for_id(path.worktree_id, cx)?;
 2893                if worktree.read(cx).is_visible() {
 2894                    abs_path
 2895                } else {
 2896                    None
 2897                }
 2898            })
 2899            .next()
 2900    }
 2901
 2902    pub fn save_active_item(
 2903        &mut self,
 2904        save_intent: SaveIntent,
 2905        window: &mut Window,
 2906        cx: &mut App,
 2907    ) -> Task<Result<()>> {
 2908        let project = self.project.clone();
 2909        let pane = self.active_pane();
 2910        let item = pane.read(cx).active_item();
 2911        let pane = pane.downgrade();
 2912
 2913        window.spawn(cx, async move |cx| {
 2914            if let Some(item) = item {
 2915                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2916                    .await
 2917                    .map(|_| ())
 2918            } else {
 2919                Ok(())
 2920            }
 2921        })
 2922    }
 2923
 2924    pub fn close_inactive_items_and_panes(
 2925        &mut self,
 2926        action: &CloseInactiveTabsAndPanes,
 2927        window: &mut Window,
 2928        cx: &mut Context<Self>,
 2929    ) {
 2930        if let Some(task) = self.close_all_internal(
 2931            true,
 2932            action.save_intent.unwrap_or(SaveIntent::Close),
 2933            window,
 2934            cx,
 2935        ) {
 2936            task.detach_and_log_err(cx)
 2937        }
 2938    }
 2939
 2940    pub fn close_all_items_and_panes(
 2941        &mut self,
 2942        action: &CloseAllItemsAndPanes,
 2943        window: &mut Window,
 2944        cx: &mut Context<Self>,
 2945    ) {
 2946        if let Some(task) = self.close_all_internal(
 2947            false,
 2948            action.save_intent.unwrap_or(SaveIntent::Close),
 2949            window,
 2950            cx,
 2951        ) {
 2952            task.detach_and_log_err(cx)
 2953        }
 2954    }
 2955
 2956    fn close_all_internal(
 2957        &mut self,
 2958        retain_active_pane: bool,
 2959        save_intent: SaveIntent,
 2960        window: &mut Window,
 2961        cx: &mut Context<Self>,
 2962    ) -> Option<Task<Result<()>>> {
 2963        let current_pane = self.active_pane();
 2964
 2965        let mut tasks = Vec::new();
 2966
 2967        if retain_active_pane {
 2968            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2969                pane.close_other_items(
 2970                    &CloseOtherItems {
 2971                        save_intent: None,
 2972                        close_pinned: false,
 2973                    },
 2974                    None,
 2975                    window,
 2976                    cx,
 2977                )
 2978            });
 2979
 2980            tasks.push(current_pane_close);
 2981        }
 2982
 2983        for pane in self.panes() {
 2984            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2985                continue;
 2986            }
 2987
 2988            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2989                pane.close_all_items(
 2990                    &CloseAllItems {
 2991                        save_intent: Some(save_intent),
 2992                        close_pinned: false,
 2993                    },
 2994                    window,
 2995                    cx,
 2996                )
 2997            });
 2998
 2999            tasks.push(close_pane_items)
 3000        }
 3001
 3002        if tasks.is_empty() {
 3003            None
 3004        } else {
 3005            Some(cx.spawn_in(window, async move |_, _| {
 3006                for task in tasks {
 3007                    task.await?
 3008                }
 3009                Ok(())
 3010            }))
 3011        }
 3012    }
 3013
 3014    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3015        self.dock_at_position(position).read(cx).is_open()
 3016    }
 3017
 3018    pub fn toggle_dock(
 3019        &mut self,
 3020        dock_side: DockPosition,
 3021        window: &mut Window,
 3022        cx: &mut Context<Self>,
 3023    ) {
 3024        let mut focus_center = false;
 3025        let mut reveal_dock = false;
 3026
 3027        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3028        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3029        if was_visible {
 3030            self.save_open_dock_positions(cx);
 3031        }
 3032
 3033        let dock = self.dock_at_position(dock_side);
 3034        dock.update(cx, |dock, cx| {
 3035            dock.set_open(!was_visible, window, cx);
 3036
 3037            if dock.active_panel().is_none() {
 3038                let Some(panel_ix) = dock
 3039                    .first_enabled_panel_idx(cx)
 3040                    .log_with_level(log::Level::Info)
 3041                else {
 3042                    return;
 3043                };
 3044                dock.activate_panel(panel_ix, window, cx);
 3045            }
 3046
 3047            if let Some(active_panel) = dock.active_panel() {
 3048                if was_visible {
 3049                    if active_panel
 3050                        .panel_focus_handle(cx)
 3051                        .contains_focused(window, cx)
 3052                    {
 3053                        focus_center = true;
 3054                    }
 3055                } else {
 3056                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3057                    window.focus(focus_handle);
 3058                    reveal_dock = true;
 3059                }
 3060            }
 3061        });
 3062
 3063        if reveal_dock {
 3064            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3065        }
 3066
 3067        if focus_center {
 3068            self.active_pane
 3069                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3070        }
 3071
 3072        cx.notify();
 3073        self.serialize_workspace(window, cx);
 3074    }
 3075
 3076    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3077        self.all_docks().into_iter().find(|&dock| {
 3078            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3079        })
 3080    }
 3081
 3082    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3083        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3084            self.save_open_dock_positions(cx);
 3085            dock.update(cx, |dock, cx| {
 3086                dock.set_open(false, window, cx);
 3087            });
 3088            return true;
 3089        }
 3090        false
 3091    }
 3092
 3093    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3094        self.save_open_dock_positions(cx);
 3095        for dock in self.all_docks() {
 3096            dock.update(cx, |dock, cx| {
 3097                dock.set_open(false, window, cx);
 3098            });
 3099        }
 3100
 3101        cx.focus_self(window);
 3102        cx.notify();
 3103        self.serialize_workspace(window, cx);
 3104    }
 3105
 3106    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3107        self.all_docks()
 3108            .into_iter()
 3109            .filter_map(|dock| {
 3110                let dock_ref = dock.read(cx);
 3111                if dock_ref.is_open() {
 3112                    Some(dock_ref.position())
 3113                } else {
 3114                    None
 3115                }
 3116            })
 3117            .collect()
 3118    }
 3119
 3120    /// Saves the positions of currently open docks.
 3121    ///
 3122    /// Updates `last_open_dock_positions` with positions of all currently open
 3123    /// docks, to later be restored by the 'Toggle All Docks' action.
 3124    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3125        let open_dock_positions = self.get_open_dock_positions(cx);
 3126        if !open_dock_positions.is_empty() {
 3127            self.last_open_dock_positions = open_dock_positions;
 3128        }
 3129    }
 3130
 3131    /// Toggles all docks between open and closed states.
 3132    ///
 3133    /// If any docks are open, closes all and remembers their positions. If all
 3134    /// docks are closed, restores the last remembered dock configuration.
 3135    fn toggle_all_docks(
 3136        &mut self,
 3137        _: &ToggleAllDocks,
 3138        window: &mut Window,
 3139        cx: &mut Context<Self>,
 3140    ) {
 3141        let open_dock_positions = self.get_open_dock_positions(cx);
 3142
 3143        if !open_dock_positions.is_empty() {
 3144            self.close_all_docks(window, cx);
 3145        } else if !self.last_open_dock_positions.is_empty() {
 3146            self.restore_last_open_docks(window, cx);
 3147        }
 3148    }
 3149
 3150    /// Reopens docks from the most recently remembered configuration.
 3151    ///
 3152    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3153    /// and clears the stored positions.
 3154    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3155        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3156
 3157        for position in positions_to_open {
 3158            let dock = self.dock_at_position(position);
 3159            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3160        }
 3161
 3162        cx.focus_self(window);
 3163        cx.notify();
 3164        self.serialize_workspace(window, cx);
 3165    }
 3166
 3167    /// Transfer focus to the panel of the given type.
 3168    pub fn focus_panel<T: Panel>(
 3169        &mut self,
 3170        window: &mut Window,
 3171        cx: &mut Context<Self>,
 3172    ) -> Option<Entity<T>> {
 3173        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3174        panel.to_any().downcast().ok()
 3175    }
 3176
 3177    /// Focus the panel of the given type if it isn't already focused. If it is
 3178    /// already focused, then transfer focus back to the workspace center.
 3179    pub fn toggle_panel_focus<T: Panel>(
 3180        &mut self,
 3181        window: &mut Window,
 3182        cx: &mut Context<Self>,
 3183    ) -> bool {
 3184        let mut did_focus_panel = false;
 3185        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3186            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3187            did_focus_panel
 3188        });
 3189        did_focus_panel
 3190    }
 3191
 3192    pub fn activate_panel_for_proto_id(
 3193        &mut self,
 3194        panel_id: PanelId,
 3195        window: &mut Window,
 3196        cx: &mut Context<Self>,
 3197    ) -> Option<Arc<dyn PanelHandle>> {
 3198        let mut panel = None;
 3199        for dock in self.all_docks() {
 3200            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3201                panel = dock.update(cx, |dock, cx| {
 3202                    dock.activate_panel(panel_index, window, cx);
 3203                    dock.set_open(true, window, cx);
 3204                    dock.active_panel().cloned()
 3205                });
 3206                break;
 3207            }
 3208        }
 3209
 3210        if panel.is_some() {
 3211            cx.notify();
 3212            self.serialize_workspace(window, cx);
 3213        }
 3214
 3215        panel
 3216    }
 3217
 3218    /// Focus or unfocus the given panel type, depending on the given callback.
 3219    fn focus_or_unfocus_panel<T: Panel>(
 3220        &mut self,
 3221        window: &mut Window,
 3222        cx: &mut Context<Self>,
 3223        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3224    ) -> Option<Arc<dyn PanelHandle>> {
 3225        let mut result_panel = None;
 3226        let mut serialize = false;
 3227        for dock in self.all_docks() {
 3228            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3229                let mut focus_center = false;
 3230                let panel = dock.update(cx, |dock, cx| {
 3231                    dock.activate_panel(panel_index, window, cx);
 3232
 3233                    let panel = dock.active_panel().cloned();
 3234                    if let Some(panel) = panel.as_ref() {
 3235                        if should_focus(&**panel, window, cx) {
 3236                            dock.set_open(true, window, cx);
 3237                            panel.panel_focus_handle(cx).focus(window);
 3238                        } else {
 3239                            focus_center = true;
 3240                        }
 3241                    }
 3242                    panel
 3243                });
 3244
 3245                if focus_center {
 3246                    self.active_pane
 3247                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3248                }
 3249
 3250                result_panel = panel;
 3251                serialize = true;
 3252                break;
 3253            }
 3254        }
 3255
 3256        if serialize {
 3257            self.serialize_workspace(window, cx);
 3258        }
 3259
 3260        cx.notify();
 3261        result_panel
 3262    }
 3263
 3264    /// Open the panel of the given type
 3265    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3266        for dock in self.all_docks() {
 3267            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3268                dock.update(cx, |dock, cx| {
 3269                    dock.activate_panel(panel_index, window, cx);
 3270                    dock.set_open(true, window, cx);
 3271                });
 3272            }
 3273        }
 3274    }
 3275
 3276    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3277        for dock in self.all_docks().iter() {
 3278            dock.update(cx, |dock, cx| {
 3279                if dock.panel::<T>().is_some() {
 3280                    dock.set_open(false, window, cx)
 3281                }
 3282            })
 3283        }
 3284    }
 3285
 3286    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3287        self.all_docks()
 3288            .iter()
 3289            .find_map(|dock| dock.read(cx).panel::<T>())
 3290    }
 3291
 3292    fn dismiss_zoomed_items_to_reveal(
 3293        &mut self,
 3294        dock_to_reveal: Option<DockPosition>,
 3295        window: &mut Window,
 3296        cx: &mut Context<Self>,
 3297    ) {
 3298        // If a center pane is zoomed, unzoom it.
 3299        for pane in &self.panes {
 3300            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3301                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3302            }
 3303        }
 3304
 3305        // If another dock is zoomed, hide it.
 3306        let mut focus_center = false;
 3307        for dock in self.all_docks() {
 3308            dock.update(cx, |dock, cx| {
 3309                if Some(dock.position()) != dock_to_reveal
 3310                    && let Some(panel) = dock.active_panel()
 3311                    && panel.is_zoomed(window, cx)
 3312                {
 3313                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3314                    dock.set_open(false, window, cx);
 3315                }
 3316            });
 3317        }
 3318
 3319        if focus_center {
 3320            self.active_pane
 3321                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3322        }
 3323
 3324        if self.zoomed_position != dock_to_reveal {
 3325            self.zoomed = None;
 3326            self.zoomed_position = None;
 3327            cx.emit(Event::ZoomChanged);
 3328        }
 3329
 3330        cx.notify();
 3331    }
 3332
 3333    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3334        let pane = cx.new(|cx| {
 3335            let mut pane = Pane::new(
 3336                self.weak_handle(),
 3337                self.project.clone(),
 3338                self.pane_history_timestamp.clone(),
 3339                None,
 3340                NewFile.boxed_clone(),
 3341                true,
 3342                window,
 3343                cx,
 3344            );
 3345            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3346            pane
 3347        });
 3348        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3349            .detach();
 3350        self.panes.push(pane.clone());
 3351
 3352        window.focus(&pane.focus_handle(cx));
 3353
 3354        cx.emit(Event::PaneAdded(pane.clone()));
 3355        pane
 3356    }
 3357
 3358    pub fn add_item_to_center(
 3359        &mut self,
 3360        item: Box<dyn ItemHandle>,
 3361        window: &mut Window,
 3362        cx: &mut Context<Self>,
 3363    ) -> bool {
 3364        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3365            if let Some(center_pane) = center_pane.upgrade() {
 3366                center_pane.update(cx, |pane, cx| {
 3367                    pane.add_item(item, true, true, None, window, cx)
 3368                });
 3369                true
 3370            } else {
 3371                false
 3372            }
 3373        } else {
 3374            false
 3375        }
 3376    }
 3377
 3378    pub fn add_item_to_active_pane(
 3379        &mut self,
 3380        item: Box<dyn ItemHandle>,
 3381        destination_index: Option<usize>,
 3382        focus_item: bool,
 3383        window: &mut Window,
 3384        cx: &mut App,
 3385    ) {
 3386        self.add_item(
 3387            self.active_pane.clone(),
 3388            item,
 3389            destination_index,
 3390            false,
 3391            focus_item,
 3392            window,
 3393            cx,
 3394        )
 3395    }
 3396
 3397    pub fn add_item(
 3398        &mut self,
 3399        pane: Entity<Pane>,
 3400        item: Box<dyn ItemHandle>,
 3401        destination_index: Option<usize>,
 3402        activate_pane: bool,
 3403        focus_item: bool,
 3404        window: &mut Window,
 3405        cx: &mut App,
 3406    ) {
 3407        pane.update(cx, |pane, cx| {
 3408            pane.add_item(
 3409                item,
 3410                activate_pane,
 3411                focus_item,
 3412                destination_index,
 3413                window,
 3414                cx,
 3415            )
 3416        });
 3417    }
 3418
 3419    pub fn split_item(
 3420        &mut self,
 3421        split_direction: SplitDirection,
 3422        item: Box<dyn ItemHandle>,
 3423        window: &mut Window,
 3424        cx: &mut Context<Self>,
 3425    ) {
 3426        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3427        self.add_item(new_pane, item, None, true, true, window, cx);
 3428    }
 3429
 3430    pub fn open_abs_path(
 3431        &mut self,
 3432        abs_path: PathBuf,
 3433        options: OpenOptions,
 3434        window: &mut Window,
 3435        cx: &mut Context<Self>,
 3436    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3437        cx.spawn_in(window, async move |workspace, cx| {
 3438            let open_paths_task_result = workspace
 3439                .update_in(cx, |workspace, window, cx| {
 3440                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3441                })
 3442                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3443                .await;
 3444            anyhow::ensure!(
 3445                open_paths_task_result.len() == 1,
 3446                "open abs path {abs_path:?} task returned incorrect number of results"
 3447            );
 3448            match open_paths_task_result
 3449                .into_iter()
 3450                .next()
 3451                .expect("ensured single task result")
 3452            {
 3453                Some(open_result) => {
 3454                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3455                }
 3456                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3457            }
 3458        })
 3459    }
 3460
 3461    pub fn split_abs_path(
 3462        &mut self,
 3463        abs_path: PathBuf,
 3464        visible: bool,
 3465        window: &mut Window,
 3466        cx: &mut Context<Self>,
 3467    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3468        let project_path_task =
 3469            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3470        cx.spawn_in(window, async move |this, cx| {
 3471            let (_, path) = project_path_task.await?;
 3472            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3473                .await
 3474        })
 3475    }
 3476
 3477    pub fn open_path(
 3478        &mut self,
 3479        path: impl Into<ProjectPath>,
 3480        pane: Option<WeakEntity<Pane>>,
 3481        focus_item: bool,
 3482        window: &mut Window,
 3483        cx: &mut App,
 3484    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3485        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3486    }
 3487
 3488    pub fn open_path_preview(
 3489        &mut self,
 3490        path: impl Into<ProjectPath>,
 3491        pane: Option<WeakEntity<Pane>>,
 3492        focus_item: bool,
 3493        allow_preview: bool,
 3494        activate: bool,
 3495        window: &mut Window,
 3496        cx: &mut App,
 3497    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3498        let pane = pane.unwrap_or_else(|| {
 3499            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3500                self.panes
 3501                    .first()
 3502                    .expect("There must be an active pane")
 3503                    .downgrade()
 3504            })
 3505        });
 3506
 3507        let project_path = path.into();
 3508        let task = self.load_path(project_path.clone(), window, cx);
 3509        window.spawn(cx, async move |cx| {
 3510            let (project_entry_id, build_item) = task.await?;
 3511
 3512            pane.update_in(cx, |pane, window, cx| {
 3513                pane.open_item(
 3514                    project_entry_id,
 3515                    project_path,
 3516                    focus_item,
 3517                    allow_preview,
 3518                    activate,
 3519                    None,
 3520                    window,
 3521                    cx,
 3522                    build_item,
 3523                )
 3524            })
 3525        })
 3526    }
 3527
 3528    pub fn split_path(
 3529        &mut self,
 3530        path: impl Into<ProjectPath>,
 3531        window: &mut Window,
 3532        cx: &mut Context<Self>,
 3533    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3534        self.split_path_preview(path, false, None, window, cx)
 3535    }
 3536
 3537    pub fn split_path_preview(
 3538        &mut self,
 3539        path: impl Into<ProjectPath>,
 3540        allow_preview: bool,
 3541        split_direction: Option<SplitDirection>,
 3542        window: &mut Window,
 3543        cx: &mut Context<Self>,
 3544    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3545        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3546            self.panes
 3547                .first()
 3548                .expect("There must be an active pane")
 3549                .downgrade()
 3550        });
 3551
 3552        if let Member::Pane(center_pane) = &self.center.root
 3553            && center_pane.read(cx).items_len() == 0
 3554        {
 3555            return self.open_path(path, Some(pane), true, window, cx);
 3556        }
 3557
 3558        let project_path = path.into();
 3559        let task = self.load_path(project_path.clone(), window, cx);
 3560        cx.spawn_in(window, async move |this, cx| {
 3561            let (project_entry_id, build_item) = task.await?;
 3562            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3563                let pane = pane.upgrade()?;
 3564                let new_pane = this.split_pane(
 3565                    pane,
 3566                    split_direction.unwrap_or(SplitDirection::Right),
 3567                    window,
 3568                    cx,
 3569                );
 3570                new_pane.update(cx, |new_pane, cx| {
 3571                    Some(new_pane.open_item(
 3572                        project_entry_id,
 3573                        project_path,
 3574                        true,
 3575                        allow_preview,
 3576                        true,
 3577                        None,
 3578                        window,
 3579                        cx,
 3580                        build_item,
 3581                    ))
 3582                })
 3583            })
 3584            .map(|option| option.context("pane was dropped"))?
 3585        })
 3586    }
 3587
 3588    fn load_path(
 3589        &mut self,
 3590        path: ProjectPath,
 3591        window: &mut Window,
 3592        cx: &mut App,
 3593    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3594        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3595        registry.open_path(self.project(), &path, window, cx)
 3596    }
 3597
 3598    pub fn find_project_item<T>(
 3599        &self,
 3600        pane: &Entity<Pane>,
 3601        project_item: &Entity<T::Item>,
 3602        cx: &App,
 3603    ) -> Option<Entity<T>>
 3604    where
 3605        T: ProjectItem,
 3606    {
 3607        use project::ProjectItem as _;
 3608        let project_item = project_item.read(cx);
 3609        let entry_id = project_item.entry_id(cx);
 3610        let project_path = project_item.project_path(cx);
 3611
 3612        let mut item = None;
 3613        if let Some(entry_id) = entry_id {
 3614            item = pane.read(cx).item_for_entry(entry_id, cx);
 3615        }
 3616        if item.is_none()
 3617            && let Some(project_path) = project_path
 3618        {
 3619            item = pane.read(cx).item_for_path(project_path, cx);
 3620        }
 3621
 3622        item.and_then(|item| item.downcast::<T>())
 3623    }
 3624
 3625    pub fn is_project_item_open<T>(
 3626        &self,
 3627        pane: &Entity<Pane>,
 3628        project_item: &Entity<T::Item>,
 3629        cx: &App,
 3630    ) -> bool
 3631    where
 3632        T: ProjectItem,
 3633    {
 3634        self.find_project_item::<T>(pane, project_item, cx)
 3635            .is_some()
 3636    }
 3637
 3638    pub fn open_project_item<T>(
 3639        &mut self,
 3640        pane: Entity<Pane>,
 3641        project_item: Entity<T::Item>,
 3642        activate_pane: bool,
 3643        focus_item: bool,
 3644        keep_old_preview: bool,
 3645        allow_new_preview: bool,
 3646        window: &mut Window,
 3647        cx: &mut Context<Self>,
 3648    ) -> Entity<T>
 3649    where
 3650        T: ProjectItem,
 3651    {
 3652        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3653
 3654        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3655            if !keep_old_preview
 3656                && let Some(old_id) = old_item_id
 3657                && old_id != item.item_id()
 3658            {
 3659                // switching to a different item, so unpreview old active item
 3660                pane.update(cx, |pane, _| {
 3661                    pane.unpreview_item_if_preview(old_id);
 3662                });
 3663            }
 3664
 3665            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3666            if !allow_new_preview {
 3667                pane.update(cx, |pane, _| {
 3668                    pane.unpreview_item_if_preview(item.item_id());
 3669                });
 3670            }
 3671            return item;
 3672        }
 3673
 3674        let item = pane.update(cx, |pane, cx| {
 3675            cx.new(|cx| {
 3676                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3677            })
 3678        });
 3679        let mut destination_index = None;
 3680        pane.update(cx, |pane, cx| {
 3681            if !keep_old_preview && let Some(old_id) = old_item_id {
 3682                pane.unpreview_item_if_preview(old_id);
 3683            }
 3684            if allow_new_preview {
 3685                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3686            }
 3687        });
 3688
 3689        self.add_item(
 3690            pane,
 3691            Box::new(item.clone()),
 3692            destination_index,
 3693            activate_pane,
 3694            focus_item,
 3695            window,
 3696            cx,
 3697        );
 3698        item
 3699    }
 3700
 3701    pub fn open_shared_screen(
 3702        &mut self,
 3703        peer_id: PeerId,
 3704        window: &mut Window,
 3705        cx: &mut Context<Self>,
 3706    ) {
 3707        if let Some(shared_screen) =
 3708            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3709        {
 3710            self.active_pane.update(cx, |pane, cx| {
 3711                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3712            });
 3713        }
 3714    }
 3715
 3716    pub fn activate_item(
 3717        &mut self,
 3718        item: &dyn ItemHandle,
 3719        activate_pane: bool,
 3720        focus_item: bool,
 3721        window: &mut Window,
 3722        cx: &mut App,
 3723    ) -> bool {
 3724        let result = self.panes.iter().find_map(|pane| {
 3725            pane.read(cx)
 3726                .index_for_item(item)
 3727                .map(|ix| (pane.clone(), ix))
 3728        });
 3729        if let Some((pane, ix)) = result {
 3730            pane.update(cx, |pane, cx| {
 3731                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3732            });
 3733            true
 3734        } else {
 3735            false
 3736        }
 3737    }
 3738
 3739    fn activate_pane_at_index(
 3740        &mut self,
 3741        action: &ActivatePane,
 3742        window: &mut Window,
 3743        cx: &mut Context<Self>,
 3744    ) {
 3745        let panes = self.center.panes();
 3746        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3747            window.focus(&pane.focus_handle(cx));
 3748        } else {
 3749            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3750                .detach();
 3751        }
 3752    }
 3753
 3754    fn move_item_to_pane_at_index(
 3755        &mut self,
 3756        action: &MoveItemToPane,
 3757        window: &mut Window,
 3758        cx: &mut Context<Self>,
 3759    ) {
 3760        let panes = self.center.panes();
 3761        let destination = match panes.get(action.destination) {
 3762            Some(&destination) => destination.clone(),
 3763            None => {
 3764                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3765                    return;
 3766                }
 3767                let direction = SplitDirection::Right;
 3768                let split_off_pane = self
 3769                    .find_pane_in_direction(direction, cx)
 3770                    .unwrap_or_else(|| self.active_pane.clone());
 3771                let new_pane = self.add_pane(window, cx);
 3772                if self
 3773                    .center
 3774                    .split(&split_off_pane, &new_pane, direction)
 3775                    .log_err()
 3776                    .is_none()
 3777                {
 3778                    return;
 3779                };
 3780                new_pane
 3781            }
 3782        };
 3783
 3784        if action.clone {
 3785            if self
 3786                .active_pane
 3787                .read(cx)
 3788                .active_item()
 3789                .is_some_and(|item| item.can_split(cx))
 3790            {
 3791                clone_active_item(
 3792                    self.database_id(),
 3793                    &self.active_pane,
 3794                    &destination,
 3795                    action.focus,
 3796                    window,
 3797                    cx,
 3798                );
 3799                return;
 3800            }
 3801        }
 3802        move_active_item(
 3803            &self.active_pane,
 3804            &destination,
 3805            action.focus,
 3806            true,
 3807            window,
 3808            cx,
 3809        )
 3810    }
 3811
 3812    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3813        let panes = self.center.panes();
 3814        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3815            let next_ix = (ix + 1) % panes.len();
 3816            let next_pane = panes[next_ix].clone();
 3817            window.focus(&next_pane.focus_handle(cx));
 3818        }
 3819    }
 3820
 3821    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3822        let panes = self.center.panes();
 3823        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3824            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3825            let prev_pane = panes[prev_ix].clone();
 3826            window.focus(&prev_pane.focus_handle(cx));
 3827        }
 3828    }
 3829
 3830    pub fn activate_pane_in_direction(
 3831        &mut self,
 3832        direction: SplitDirection,
 3833        window: &mut Window,
 3834        cx: &mut App,
 3835    ) {
 3836        use ActivateInDirectionTarget as Target;
 3837        enum Origin {
 3838            LeftDock,
 3839            RightDock,
 3840            BottomDock,
 3841            Center,
 3842        }
 3843
 3844        let origin: Origin = [
 3845            (&self.left_dock, Origin::LeftDock),
 3846            (&self.right_dock, Origin::RightDock),
 3847            (&self.bottom_dock, Origin::BottomDock),
 3848        ]
 3849        .into_iter()
 3850        .find_map(|(dock, origin)| {
 3851            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3852                Some(origin)
 3853            } else {
 3854                None
 3855            }
 3856        })
 3857        .unwrap_or(Origin::Center);
 3858
 3859        let get_last_active_pane = || {
 3860            let pane = self
 3861                .last_active_center_pane
 3862                .clone()
 3863                .unwrap_or_else(|| {
 3864                    self.panes
 3865                        .first()
 3866                        .expect("There must be an active pane")
 3867                        .downgrade()
 3868                })
 3869                .upgrade()?;
 3870            (pane.read(cx).items_len() != 0).then_some(pane)
 3871        };
 3872
 3873        let try_dock =
 3874            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3875
 3876        let target = match (origin, direction) {
 3877            // We're in the center, so we first try to go to a different pane,
 3878            // otherwise try to go to a dock.
 3879            (Origin::Center, direction) => {
 3880                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3881                    Some(Target::Pane(pane))
 3882                } else {
 3883                    match direction {
 3884                        SplitDirection::Up => None,
 3885                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3886                        SplitDirection::Left => try_dock(&self.left_dock),
 3887                        SplitDirection::Right => try_dock(&self.right_dock),
 3888                    }
 3889                }
 3890            }
 3891
 3892            (Origin::LeftDock, SplitDirection::Right) => {
 3893                if let Some(last_active_pane) = get_last_active_pane() {
 3894                    Some(Target::Pane(last_active_pane))
 3895                } else {
 3896                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3897                }
 3898            }
 3899
 3900            (Origin::LeftDock, SplitDirection::Down)
 3901            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3902
 3903            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3904            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3905            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3906
 3907            (Origin::RightDock, SplitDirection::Left) => {
 3908                if let Some(last_active_pane) = get_last_active_pane() {
 3909                    Some(Target::Pane(last_active_pane))
 3910                } else {
 3911                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3912                }
 3913            }
 3914
 3915            _ => None,
 3916        };
 3917
 3918        match target {
 3919            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3920                let pane = pane.read(cx);
 3921                if let Some(item) = pane.active_item() {
 3922                    item.item_focus_handle(cx).focus(window);
 3923                } else {
 3924                    log::error!(
 3925                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3926                    );
 3927                }
 3928            }
 3929            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3930                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3931                window.defer(cx, move |window, cx| {
 3932                    let dock = dock.read(cx);
 3933                    if let Some(panel) = dock.active_panel() {
 3934                        panel.panel_focus_handle(cx).focus(window);
 3935                    } else {
 3936                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3937                    }
 3938                })
 3939            }
 3940            None => {}
 3941        }
 3942    }
 3943
 3944    pub fn move_item_to_pane_in_direction(
 3945        &mut self,
 3946        action: &MoveItemToPaneInDirection,
 3947        window: &mut Window,
 3948        cx: &mut Context<Self>,
 3949    ) {
 3950        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3951            Some(destination) => destination,
 3952            None => {
 3953                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3954                    return;
 3955                }
 3956                let new_pane = self.add_pane(window, cx);
 3957                if self
 3958                    .center
 3959                    .split(&self.active_pane, &new_pane, action.direction)
 3960                    .log_err()
 3961                    .is_none()
 3962                {
 3963                    return;
 3964                };
 3965                new_pane
 3966            }
 3967        };
 3968
 3969        if action.clone {
 3970            if self
 3971                .active_pane
 3972                .read(cx)
 3973                .active_item()
 3974                .is_some_and(|item| item.can_split(cx))
 3975            {
 3976                clone_active_item(
 3977                    self.database_id(),
 3978                    &self.active_pane,
 3979                    &destination,
 3980                    action.focus,
 3981                    window,
 3982                    cx,
 3983                );
 3984                return;
 3985            }
 3986        }
 3987        move_active_item(
 3988            &self.active_pane,
 3989            &destination,
 3990            action.focus,
 3991            true,
 3992            window,
 3993            cx,
 3994        );
 3995    }
 3996
 3997    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3998        self.center.bounding_box_for_pane(pane)
 3999    }
 4000
 4001    pub fn find_pane_in_direction(
 4002        &mut self,
 4003        direction: SplitDirection,
 4004        cx: &App,
 4005    ) -> Option<Entity<Pane>> {
 4006        self.center
 4007            .find_pane_in_direction(&self.active_pane, direction, cx)
 4008            .cloned()
 4009    }
 4010
 4011    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4012        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4013            self.center.swap(&self.active_pane, &to);
 4014            cx.notify();
 4015        }
 4016    }
 4017
 4018    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4019        if self
 4020            .center
 4021            .move_to_border(&self.active_pane, direction)
 4022            .unwrap()
 4023        {
 4024            cx.notify();
 4025        }
 4026    }
 4027
 4028    pub fn resize_pane(
 4029        &mut self,
 4030        axis: gpui::Axis,
 4031        amount: Pixels,
 4032        window: &mut Window,
 4033        cx: &mut Context<Self>,
 4034    ) {
 4035        let docks = self.all_docks();
 4036        let active_dock = docks
 4037            .into_iter()
 4038            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4039
 4040        if let Some(dock) = active_dock {
 4041            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4042                return;
 4043            };
 4044            match dock.read(cx).position() {
 4045                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4046                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4047                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4048            }
 4049        } else {
 4050            self.center
 4051                .resize(&self.active_pane, axis, amount, &self.bounds);
 4052        }
 4053        cx.notify();
 4054    }
 4055
 4056    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4057        self.center.reset_pane_sizes();
 4058        cx.notify();
 4059    }
 4060
 4061    fn handle_pane_focused(
 4062        &mut self,
 4063        pane: Entity<Pane>,
 4064        window: &mut Window,
 4065        cx: &mut Context<Self>,
 4066    ) {
 4067        // This is explicitly hoisted out of the following check for pane identity as
 4068        // terminal panel panes are not registered as a center panes.
 4069        self.status_bar.update(cx, |status_bar, cx| {
 4070            status_bar.set_active_pane(&pane, window, cx);
 4071        });
 4072        if self.active_pane != pane {
 4073            self.set_active_pane(&pane, window, cx);
 4074        }
 4075
 4076        if self.last_active_center_pane.is_none() {
 4077            self.last_active_center_pane = Some(pane.downgrade());
 4078        }
 4079
 4080        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4081        if pane.read(cx).is_zoomed() {
 4082            self.zoomed = Some(pane.downgrade().into());
 4083        } else {
 4084            self.zoomed = None;
 4085        }
 4086        self.zoomed_position = None;
 4087        cx.emit(Event::ZoomChanged);
 4088        self.update_active_view_for_followers(window, cx);
 4089        pane.update(cx, |pane, _| {
 4090            pane.track_alternate_file_items();
 4091        });
 4092
 4093        cx.notify();
 4094    }
 4095
 4096    fn set_active_pane(
 4097        &mut self,
 4098        pane: &Entity<Pane>,
 4099        window: &mut Window,
 4100        cx: &mut Context<Self>,
 4101    ) {
 4102        self.active_pane = pane.clone();
 4103        self.active_item_path_changed(window, cx);
 4104        self.last_active_center_pane = Some(pane.downgrade());
 4105    }
 4106
 4107    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4108        self.update_active_view_for_followers(window, cx);
 4109    }
 4110
 4111    fn handle_pane_event(
 4112        &mut self,
 4113        pane: &Entity<Pane>,
 4114        event: &pane::Event,
 4115        window: &mut Window,
 4116        cx: &mut Context<Self>,
 4117    ) {
 4118        let mut serialize_workspace = true;
 4119        match event {
 4120            pane::Event::AddItem { item } => {
 4121                item.added_to_pane(self, pane.clone(), window, cx);
 4122                cx.emit(Event::ItemAdded {
 4123                    item: item.boxed_clone(),
 4124                });
 4125            }
 4126            pane::Event::Split {
 4127                direction,
 4128                clone_active_item,
 4129            } => {
 4130                if *clone_active_item {
 4131                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4132                        .detach();
 4133                } else {
 4134                    self.split_and_move(pane.clone(), *direction, window, cx);
 4135                }
 4136            }
 4137            pane::Event::JoinIntoNext => {
 4138                self.join_pane_into_next(pane.clone(), window, cx);
 4139            }
 4140            pane::Event::JoinAll => {
 4141                self.join_all_panes(window, cx);
 4142            }
 4143            pane::Event::Remove { focus_on_pane } => {
 4144                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4145            }
 4146            pane::Event::ActivateItem {
 4147                local,
 4148                focus_changed,
 4149            } => {
 4150                window.invalidate_character_coordinates();
 4151
 4152                pane.update(cx, |pane, _| {
 4153                    pane.track_alternate_file_items();
 4154                });
 4155                if *local {
 4156                    self.unfollow_in_pane(pane, window, cx);
 4157                }
 4158                serialize_workspace = *focus_changed || pane != self.active_pane();
 4159                if pane == self.active_pane() {
 4160                    self.active_item_path_changed(window, cx);
 4161                    self.update_active_view_for_followers(window, cx);
 4162                } else if *local {
 4163                    self.set_active_pane(pane, window, cx);
 4164                }
 4165            }
 4166            pane::Event::UserSavedItem { item, save_intent } => {
 4167                cx.emit(Event::UserSavedItem {
 4168                    pane: pane.downgrade(),
 4169                    item: item.boxed_clone(),
 4170                    save_intent: *save_intent,
 4171                });
 4172                serialize_workspace = false;
 4173            }
 4174            pane::Event::ChangeItemTitle => {
 4175                if *pane == self.active_pane {
 4176                    self.active_item_path_changed(window, cx);
 4177                }
 4178                serialize_workspace = false;
 4179            }
 4180            pane::Event::RemovedItem { item } => {
 4181                cx.emit(Event::ActiveItemChanged);
 4182                self.update_window_edited(window, cx);
 4183                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4184                    && entry.get().entity_id() == pane.entity_id()
 4185                {
 4186                    entry.remove();
 4187                }
 4188                cx.emit(Event::ItemRemoved {
 4189                    item_id: item.item_id(),
 4190                });
 4191            }
 4192            pane::Event::Focus => {
 4193                window.invalidate_character_coordinates();
 4194                self.handle_pane_focused(pane.clone(), window, cx);
 4195            }
 4196            pane::Event::ZoomIn => {
 4197                if *pane == self.active_pane {
 4198                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4199                    if pane.read(cx).has_focus(window, cx) {
 4200                        self.zoomed = Some(pane.downgrade().into());
 4201                        self.zoomed_position = None;
 4202                        cx.emit(Event::ZoomChanged);
 4203                    }
 4204                    cx.notify();
 4205                }
 4206            }
 4207            pane::Event::ZoomOut => {
 4208                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4209                if self.zoomed_position.is_none() {
 4210                    self.zoomed = None;
 4211                    cx.emit(Event::ZoomChanged);
 4212                }
 4213                cx.notify();
 4214            }
 4215            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4216        }
 4217
 4218        if serialize_workspace {
 4219            self.serialize_workspace(window, cx);
 4220        }
 4221    }
 4222
 4223    pub fn unfollow_in_pane(
 4224        &mut self,
 4225        pane: &Entity<Pane>,
 4226        window: &mut Window,
 4227        cx: &mut Context<Workspace>,
 4228    ) -> Option<CollaboratorId> {
 4229        let leader_id = self.leader_for_pane(pane)?;
 4230        self.unfollow(leader_id, window, cx);
 4231        Some(leader_id)
 4232    }
 4233
 4234    pub fn split_pane(
 4235        &mut self,
 4236        pane_to_split: Entity<Pane>,
 4237        split_direction: SplitDirection,
 4238        window: &mut Window,
 4239        cx: &mut Context<Self>,
 4240    ) -> Entity<Pane> {
 4241        let new_pane = self.add_pane(window, cx);
 4242        self.center
 4243            .split(&pane_to_split, &new_pane, split_direction)
 4244            .unwrap();
 4245        cx.notify();
 4246        new_pane
 4247    }
 4248
 4249    pub fn split_and_move(
 4250        &mut self,
 4251        pane: Entity<Pane>,
 4252        direction: SplitDirection,
 4253        window: &mut Window,
 4254        cx: &mut Context<Self>,
 4255    ) {
 4256        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4257            return;
 4258        };
 4259        let new_pane = self.add_pane(window, cx);
 4260        new_pane.update(cx, |pane, cx| {
 4261            pane.add_item(item, true, true, None, window, cx)
 4262        });
 4263        self.center.split(&pane, &new_pane, direction).unwrap();
 4264        cx.notify();
 4265    }
 4266
 4267    pub fn split_and_clone(
 4268        &mut self,
 4269        pane: Entity<Pane>,
 4270        direction: SplitDirection,
 4271        window: &mut Window,
 4272        cx: &mut Context<Self>,
 4273    ) -> Task<Option<Entity<Pane>>> {
 4274        let Some(item) = pane.read(cx).active_item() else {
 4275            return Task::ready(None);
 4276        };
 4277        if !item.can_split(cx) {
 4278            return Task::ready(None);
 4279        }
 4280        let task = item.clone_on_split(self.database_id(), window, cx);
 4281        cx.spawn_in(window, async move |this, cx| {
 4282            if let Some(clone) = task.await {
 4283                this.update_in(cx, |this, window, cx| {
 4284                    let new_pane = this.add_pane(window, cx);
 4285                    new_pane.update(cx, |pane, cx| {
 4286                        pane.add_item(clone, true, true, None, window, cx)
 4287                    });
 4288                    this.center.split(&pane, &new_pane, direction).unwrap();
 4289                    cx.notify();
 4290                    new_pane
 4291                })
 4292                .ok()
 4293            } else {
 4294                None
 4295            }
 4296        })
 4297    }
 4298
 4299    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4300        let active_item = self.active_pane.read(cx).active_item();
 4301        for pane in &self.panes {
 4302            join_pane_into_active(&self.active_pane, pane, window, cx);
 4303        }
 4304        if let Some(active_item) = active_item {
 4305            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4306        }
 4307        cx.notify();
 4308    }
 4309
 4310    pub fn join_pane_into_next(
 4311        &mut self,
 4312        pane: Entity<Pane>,
 4313        window: &mut Window,
 4314        cx: &mut Context<Self>,
 4315    ) {
 4316        let next_pane = self
 4317            .find_pane_in_direction(SplitDirection::Right, cx)
 4318            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4319            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4320            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4321        let Some(next_pane) = next_pane else {
 4322            return;
 4323        };
 4324        move_all_items(&pane, &next_pane, window, cx);
 4325        cx.notify();
 4326    }
 4327
 4328    fn remove_pane(
 4329        &mut self,
 4330        pane: Entity<Pane>,
 4331        focus_on: Option<Entity<Pane>>,
 4332        window: &mut Window,
 4333        cx: &mut Context<Self>,
 4334    ) {
 4335        if self.center.remove(&pane).unwrap() {
 4336            self.force_remove_pane(&pane, &focus_on, window, cx);
 4337            self.unfollow_in_pane(&pane, window, cx);
 4338            self.last_leaders_by_pane.remove(&pane.downgrade());
 4339            for removed_item in pane.read(cx).items() {
 4340                self.panes_by_item.remove(&removed_item.item_id());
 4341            }
 4342
 4343            cx.notify();
 4344        } else {
 4345            self.active_item_path_changed(window, cx);
 4346        }
 4347        cx.emit(Event::PaneRemoved);
 4348    }
 4349
 4350    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4351        &mut self.panes
 4352    }
 4353
 4354    pub fn panes(&self) -> &[Entity<Pane>] {
 4355        &self.panes
 4356    }
 4357
 4358    pub fn active_pane(&self) -> &Entity<Pane> {
 4359        &self.active_pane
 4360    }
 4361
 4362    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4363        for dock in self.all_docks() {
 4364            if dock.focus_handle(cx).contains_focused(window, cx)
 4365                && let Some(pane) = dock
 4366                    .read(cx)
 4367                    .active_panel()
 4368                    .and_then(|panel| panel.pane(cx))
 4369            {
 4370                return pane;
 4371            }
 4372        }
 4373        self.active_pane().clone()
 4374    }
 4375
 4376    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4377        self.find_pane_in_direction(SplitDirection::Right, cx)
 4378            .unwrap_or_else(|| {
 4379                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4380            })
 4381    }
 4382
 4383    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4384        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4385        weak_pane.upgrade()
 4386    }
 4387
 4388    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4389        self.follower_states.retain(|leader_id, state| {
 4390            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4391                for item in state.items_by_leader_view_id.values() {
 4392                    item.view.set_leader_id(None, window, cx);
 4393                }
 4394                false
 4395            } else {
 4396                true
 4397            }
 4398        });
 4399        cx.notify();
 4400    }
 4401
 4402    pub fn start_following(
 4403        &mut self,
 4404        leader_id: impl Into<CollaboratorId>,
 4405        window: &mut Window,
 4406        cx: &mut Context<Self>,
 4407    ) -> Option<Task<Result<()>>> {
 4408        let leader_id = leader_id.into();
 4409        let pane = self.active_pane().clone();
 4410
 4411        self.last_leaders_by_pane
 4412            .insert(pane.downgrade(), leader_id);
 4413        self.unfollow(leader_id, window, cx);
 4414        self.unfollow_in_pane(&pane, window, cx);
 4415        self.follower_states.insert(
 4416            leader_id,
 4417            FollowerState {
 4418                center_pane: pane.clone(),
 4419                dock_pane: None,
 4420                active_view_id: None,
 4421                items_by_leader_view_id: Default::default(),
 4422            },
 4423        );
 4424        cx.notify();
 4425
 4426        match leader_id {
 4427            CollaboratorId::PeerId(leader_peer_id) => {
 4428                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4429                let project_id = self.project.read(cx).remote_id();
 4430                let request = self.app_state.client.request(proto::Follow {
 4431                    room_id,
 4432                    project_id,
 4433                    leader_id: Some(leader_peer_id),
 4434                });
 4435
 4436                Some(cx.spawn_in(window, async move |this, cx| {
 4437                    let response = request.await?;
 4438                    this.update(cx, |this, _| {
 4439                        let state = this
 4440                            .follower_states
 4441                            .get_mut(&leader_id)
 4442                            .context("following interrupted")?;
 4443                        state.active_view_id = response
 4444                            .active_view
 4445                            .as_ref()
 4446                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4447                        anyhow::Ok(())
 4448                    })??;
 4449                    if let Some(view) = response.active_view {
 4450                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4451                    }
 4452                    this.update_in(cx, |this, window, cx| {
 4453                        this.leader_updated(leader_id, window, cx)
 4454                    })?;
 4455                    Ok(())
 4456                }))
 4457            }
 4458            CollaboratorId::Agent => {
 4459                self.leader_updated(leader_id, window, cx)?;
 4460                Some(Task::ready(Ok(())))
 4461            }
 4462        }
 4463    }
 4464
 4465    pub fn follow_next_collaborator(
 4466        &mut self,
 4467        _: &FollowNextCollaborator,
 4468        window: &mut Window,
 4469        cx: &mut Context<Self>,
 4470    ) {
 4471        let collaborators = self.project.read(cx).collaborators();
 4472        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4473            let mut collaborators = collaborators.keys().copied();
 4474            for peer_id in collaborators.by_ref() {
 4475                if CollaboratorId::PeerId(peer_id) == leader_id {
 4476                    break;
 4477                }
 4478            }
 4479            collaborators.next().map(CollaboratorId::PeerId)
 4480        } else if let Some(last_leader_id) =
 4481            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4482        {
 4483            match last_leader_id {
 4484                CollaboratorId::PeerId(peer_id) => {
 4485                    if collaborators.contains_key(peer_id) {
 4486                        Some(*last_leader_id)
 4487                    } else {
 4488                        None
 4489                    }
 4490                }
 4491                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4492            }
 4493        } else {
 4494            None
 4495        };
 4496
 4497        let pane = self.active_pane.clone();
 4498        let Some(leader_id) = next_leader_id.or_else(|| {
 4499            Some(CollaboratorId::PeerId(
 4500                collaborators.keys().copied().next()?,
 4501            ))
 4502        }) else {
 4503            return;
 4504        };
 4505        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4506            return;
 4507        }
 4508        if let Some(task) = self.start_following(leader_id, window, cx) {
 4509            task.detach_and_log_err(cx)
 4510        }
 4511    }
 4512
 4513    pub fn follow(
 4514        &mut self,
 4515        leader_id: impl Into<CollaboratorId>,
 4516        window: &mut Window,
 4517        cx: &mut Context<Self>,
 4518    ) {
 4519        let leader_id = leader_id.into();
 4520
 4521        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4522            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4523                return;
 4524            };
 4525            let room = room.read(cx);
 4526            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4527                return;
 4528            };
 4529
 4530            let project = self.project.read(cx);
 4531
 4532            let other_project_id = match remote_participant.location {
 4533                call::ParticipantLocation::External => None,
 4534                call::ParticipantLocation::UnsharedProject => None,
 4535                call::ParticipantLocation::SharedProject { project_id } => {
 4536                    if Some(project_id) == project.remote_id() {
 4537                        None
 4538                    } else {
 4539                        Some(project_id)
 4540                    }
 4541                }
 4542            };
 4543
 4544            // if they are active in another project, follow there.
 4545            if let Some(project_id) = other_project_id {
 4546                let app_state = self.app_state.clone();
 4547                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4548                    .detach_and_log_err(cx);
 4549            }
 4550        }
 4551
 4552        // if you're already following, find the right pane and focus it.
 4553        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4554            window.focus(&follower_state.pane().focus_handle(cx));
 4555
 4556            return;
 4557        }
 4558
 4559        // Otherwise, follow.
 4560        if let Some(task) = self.start_following(leader_id, window, cx) {
 4561            task.detach_and_log_err(cx)
 4562        }
 4563    }
 4564
 4565    pub fn unfollow(
 4566        &mut self,
 4567        leader_id: impl Into<CollaboratorId>,
 4568        window: &mut Window,
 4569        cx: &mut Context<Self>,
 4570    ) -> Option<()> {
 4571        cx.notify();
 4572
 4573        let leader_id = leader_id.into();
 4574        let state = self.follower_states.remove(&leader_id)?;
 4575        for (_, item) in state.items_by_leader_view_id {
 4576            item.view.set_leader_id(None, window, cx);
 4577        }
 4578
 4579        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4580            let project_id = self.project.read(cx).remote_id();
 4581            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4582            self.app_state
 4583                .client
 4584                .send(proto::Unfollow {
 4585                    room_id,
 4586                    project_id,
 4587                    leader_id: Some(leader_peer_id),
 4588                })
 4589                .log_err();
 4590        }
 4591
 4592        Some(())
 4593    }
 4594
 4595    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4596        self.follower_states.contains_key(&id.into())
 4597    }
 4598
 4599    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4600        cx.emit(Event::ActiveItemChanged);
 4601        let active_entry = self.active_project_path(cx);
 4602        self.project.update(cx, |project, cx| {
 4603            project.set_active_path(active_entry.clone(), cx)
 4604        });
 4605
 4606        if let Some(project_path) = &active_entry {
 4607            let git_store_entity = self.project.read(cx).git_store().clone();
 4608            git_store_entity.update(cx, |git_store, cx| {
 4609                git_store.set_active_repo_for_path(project_path, cx);
 4610            });
 4611        }
 4612
 4613        self.update_window_title(window, cx);
 4614    }
 4615
 4616    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4617        let project = self.project().read(cx);
 4618        let mut title = String::new();
 4619
 4620        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4621            let name = {
 4622                let settings_location = SettingsLocation {
 4623                    worktree_id: worktree.read(cx).id(),
 4624                    path: RelPath::empty(),
 4625                };
 4626
 4627                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4628                match &settings.project_name {
 4629                    Some(name) => name.as_str(),
 4630                    None => worktree.read(cx).root_name_str(),
 4631                }
 4632            };
 4633            if i > 0 {
 4634                title.push_str(", ");
 4635            }
 4636            title.push_str(name);
 4637        }
 4638
 4639        if title.is_empty() {
 4640            title = "empty project".to_string();
 4641        }
 4642
 4643        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4644            let filename = path.path.file_name().or_else(|| {
 4645                Some(
 4646                    project
 4647                        .worktree_for_id(path.worktree_id, cx)?
 4648                        .read(cx)
 4649                        .root_name_str(),
 4650                )
 4651            });
 4652
 4653            if let Some(filename) = filename {
 4654                title.push_str("");
 4655                title.push_str(filename.as_ref());
 4656            }
 4657        }
 4658
 4659        if project.is_via_collab() {
 4660            title.push_str("");
 4661        } else if project.is_shared() {
 4662            title.push_str("");
 4663        }
 4664
 4665        if let Some(last_title) = self.last_window_title.as_ref()
 4666            && &title == last_title
 4667        {
 4668            return;
 4669        }
 4670        window.set_window_title(&title);
 4671        SystemWindowTabController::update_tab_title(
 4672            cx,
 4673            window.window_handle().window_id(),
 4674            SharedString::from(&title),
 4675        );
 4676        self.last_window_title = Some(title);
 4677    }
 4678
 4679    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4680        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4681        if is_edited != self.window_edited {
 4682            self.window_edited = is_edited;
 4683            window.set_window_edited(self.window_edited)
 4684        }
 4685    }
 4686
 4687    fn update_item_dirty_state(
 4688        &mut self,
 4689        item: &dyn ItemHandle,
 4690        window: &mut Window,
 4691        cx: &mut App,
 4692    ) {
 4693        let is_dirty = item.is_dirty(cx);
 4694        let item_id = item.item_id();
 4695        let was_dirty = self.dirty_items.contains_key(&item_id);
 4696        if is_dirty == was_dirty {
 4697            return;
 4698        }
 4699        if was_dirty {
 4700            self.dirty_items.remove(&item_id);
 4701            self.update_window_edited(window, cx);
 4702            return;
 4703        }
 4704        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4705            let s = item.on_release(
 4706                cx,
 4707                Box::new(move |cx| {
 4708                    window_handle
 4709                        .update(cx, |this, window, cx| {
 4710                            this.dirty_items.remove(&item_id);
 4711                            this.update_window_edited(window, cx)
 4712                        })
 4713                        .ok();
 4714                }),
 4715            );
 4716            self.dirty_items.insert(item_id, s);
 4717            self.update_window_edited(window, cx);
 4718        }
 4719    }
 4720
 4721    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4722        if self.notifications.is_empty() {
 4723            None
 4724        } else {
 4725            Some(
 4726                div()
 4727                    .absolute()
 4728                    .right_3()
 4729                    .bottom_3()
 4730                    .w_112()
 4731                    .h_full()
 4732                    .flex()
 4733                    .flex_col()
 4734                    .justify_end()
 4735                    .gap_2()
 4736                    .children(
 4737                        self.notifications
 4738                            .iter()
 4739                            .map(|(_, notification)| notification.clone().into_any()),
 4740                    ),
 4741            )
 4742        }
 4743    }
 4744
 4745    // RPC handlers
 4746
 4747    fn active_view_for_follower(
 4748        &self,
 4749        follower_project_id: Option<u64>,
 4750        window: &mut Window,
 4751        cx: &mut Context<Self>,
 4752    ) -> Option<proto::View> {
 4753        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4754        let item = item?;
 4755        let leader_id = self
 4756            .pane_for(&*item)
 4757            .and_then(|pane| self.leader_for_pane(&pane));
 4758        let leader_peer_id = match leader_id {
 4759            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4760            Some(CollaboratorId::Agent) | None => None,
 4761        };
 4762
 4763        let item_handle = item.to_followable_item_handle(cx)?;
 4764        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4765        let variant = item_handle.to_state_proto(window, cx)?;
 4766
 4767        if item_handle.is_project_item(window, cx)
 4768            && (follower_project_id.is_none()
 4769                || follower_project_id != self.project.read(cx).remote_id())
 4770        {
 4771            return None;
 4772        }
 4773
 4774        Some(proto::View {
 4775            id: id.to_proto(),
 4776            leader_id: leader_peer_id,
 4777            variant: Some(variant),
 4778            panel_id: panel_id.map(|id| id as i32),
 4779        })
 4780    }
 4781
 4782    fn handle_follow(
 4783        &mut self,
 4784        follower_project_id: Option<u64>,
 4785        window: &mut Window,
 4786        cx: &mut Context<Self>,
 4787    ) -> proto::FollowResponse {
 4788        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4789
 4790        cx.notify();
 4791        proto::FollowResponse {
 4792            // TODO: Remove after version 0.145.x stabilizes.
 4793            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4794            views: active_view.iter().cloned().collect(),
 4795            active_view,
 4796        }
 4797    }
 4798
 4799    fn handle_update_followers(
 4800        &mut self,
 4801        leader_id: PeerId,
 4802        message: proto::UpdateFollowers,
 4803        _window: &mut Window,
 4804        _cx: &mut Context<Self>,
 4805    ) {
 4806        self.leader_updates_tx
 4807            .unbounded_send((leader_id, message))
 4808            .ok();
 4809    }
 4810
 4811    async fn process_leader_update(
 4812        this: &WeakEntity<Self>,
 4813        leader_id: PeerId,
 4814        update: proto::UpdateFollowers,
 4815        cx: &mut AsyncWindowContext,
 4816    ) -> Result<()> {
 4817        match update.variant.context("invalid update")? {
 4818            proto::update_followers::Variant::CreateView(view) => {
 4819                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4820                let should_add_view = this.update(cx, |this, _| {
 4821                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4822                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4823                    } else {
 4824                        anyhow::Ok(false)
 4825                    }
 4826                })??;
 4827
 4828                if should_add_view {
 4829                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4830                }
 4831            }
 4832            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4833                let should_add_view = this.update(cx, |this, _| {
 4834                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4835                        state.active_view_id = update_active_view
 4836                            .view
 4837                            .as_ref()
 4838                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4839
 4840                        if state.active_view_id.is_some_and(|view_id| {
 4841                            !state.items_by_leader_view_id.contains_key(&view_id)
 4842                        }) {
 4843                            anyhow::Ok(true)
 4844                        } else {
 4845                            anyhow::Ok(false)
 4846                        }
 4847                    } else {
 4848                        anyhow::Ok(false)
 4849                    }
 4850                })??;
 4851
 4852                if should_add_view && let Some(view) = update_active_view.view {
 4853                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4854                }
 4855            }
 4856            proto::update_followers::Variant::UpdateView(update_view) => {
 4857                let variant = update_view.variant.context("missing update view variant")?;
 4858                let id = update_view.id.context("missing update view id")?;
 4859                let mut tasks = Vec::new();
 4860                this.update_in(cx, |this, window, cx| {
 4861                    let project = this.project.clone();
 4862                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4863                        let view_id = ViewId::from_proto(id.clone())?;
 4864                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4865                            tasks.push(item.view.apply_update_proto(
 4866                                &project,
 4867                                variant.clone(),
 4868                                window,
 4869                                cx,
 4870                            ));
 4871                        }
 4872                    }
 4873                    anyhow::Ok(())
 4874                })??;
 4875                try_join_all(tasks).await.log_err();
 4876            }
 4877        }
 4878        this.update_in(cx, |this, window, cx| {
 4879            this.leader_updated(leader_id, window, cx)
 4880        })?;
 4881        Ok(())
 4882    }
 4883
 4884    async fn add_view_from_leader(
 4885        this: WeakEntity<Self>,
 4886        leader_id: PeerId,
 4887        view: &proto::View,
 4888        cx: &mut AsyncWindowContext,
 4889    ) -> Result<()> {
 4890        let this = this.upgrade().context("workspace dropped")?;
 4891
 4892        let Some(id) = view.id.clone() else {
 4893            anyhow::bail!("no id for view");
 4894        };
 4895        let id = ViewId::from_proto(id)?;
 4896        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4897
 4898        let pane = this.update(cx, |this, _cx| {
 4899            let state = this
 4900                .follower_states
 4901                .get(&leader_id.into())
 4902                .context("stopped following")?;
 4903            anyhow::Ok(state.pane().clone())
 4904        })??;
 4905        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4906            let client = this.read(cx).client().clone();
 4907            pane.items().find_map(|item| {
 4908                let item = item.to_followable_item_handle(cx)?;
 4909                if item.remote_id(&client, window, cx) == Some(id) {
 4910                    Some(item)
 4911                } else {
 4912                    None
 4913                }
 4914            })
 4915        })?;
 4916        let item = if let Some(existing_item) = existing_item {
 4917            existing_item
 4918        } else {
 4919            let variant = view.variant.clone();
 4920            anyhow::ensure!(variant.is_some(), "missing view variant");
 4921
 4922            let task = cx.update(|window, cx| {
 4923                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4924            })?;
 4925
 4926            let Some(task) = task else {
 4927                anyhow::bail!(
 4928                    "failed to construct view from leader (maybe from a different version of zed?)"
 4929                );
 4930            };
 4931
 4932            let mut new_item = task.await?;
 4933            pane.update_in(cx, |pane, window, cx| {
 4934                let mut item_to_remove = None;
 4935                for (ix, item) in pane.items().enumerate() {
 4936                    if let Some(item) = item.to_followable_item_handle(cx) {
 4937                        match new_item.dedup(item.as_ref(), window, cx) {
 4938                            Some(item::Dedup::KeepExisting) => {
 4939                                new_item =
 4940                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4941                                break;
 4942                            }
 4943                            Some(item::Dedup::ReplaceExisting) => {
 4944                                item_to_remove = Some((ix, item.item_id()));
 4945                                break;
 4946                            }
 4947                            None => {}
 4948                        }
 4949                    }
 4950                }
 4951
 4952                if let Some((ix, id)) = item_to_remove {
 4953                    pane.remove_item(id, false, false, window, cx);
 4954                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4955                }
 4956            })?;
 4957
 4958            new_item
 4959        };
 4960
 4961        this.update_in(cx, |this, window, cx| {
 4962            let state = this.follower_states.get_mut(&leader_id.into())?;
 4963            item.set_leader_id(Some(leader_id.into()), window, cx);
 4964            state.items_by_leader_view_id.insert(
 4965                id,
 4966                FollowerView {
 4967                    view: item,
 4968                    location: panel_id,
 4969                },
 4970            );
 4971
 4972            Some(())
 4973        })?;
 4974
 4975        Ok(())
 4976    }
 4977
 4978    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4979        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4980            return;
 4981        };
 4982
 4983        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4984            let buffer_entity_id = agent_location.buffer.entity_id();
 4985            let view_id = ViewId {
 4986                creator: CollaboratorId::Agent,
 4987                id: buffer_entity_id.as_u64(),
 4988            };
 4989            follower_state.active_view_id = Some(view_id);
 4990
 4991            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4992                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4993                hash_map::Entry::Vacant(entry) => {
 4994                    let existing_view =
 4995                        follower_state
 4996                            .center_pane
 4997                            .read(cx)
 4998                            .items()
 4999                            .find_map(|item| {
 5000                                let item = item.to_followable_item_handle(cx)?;
 5001                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5002                                    && item.project_item_model_ids(cx).as_slice()
 5003                                        == [buffer_entity_id]
 5004                                {
 5005                                    Some(item)
 5006                                } else {
 5007                                    None
 5008                                }
 5009                            });
 5010                    let view = existing_view.or_else(|| {
 5011                        agent_location.buffer.upgrade().and_then(|buffer| {
 5012                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5013                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5014                            })?
 5015                            .to_followable_item_handle(cx)
 5016                        })
 5017                    });
 5018
 5019                    view.map(|view| {
 5020                        entry.insert(FollowerView {
 5021                            view,
 5022                            location: None,
 5023                        })
 5024                    })
 5025                }
 5026            };
 5027
 5028            if let Some(item) = item {
 5029                item.view
 5030                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5031                item.view
 5032                    .update_agent_location(agent_location.position, window, cx);
 5033            }
 5034        } else {
 5035            follower_state.active_view_id = None;
 5036        }
 5037
 5038        self.leader_updated(CollaboratorId::Agent, window, cx);
 5039    }
 5040
 5041    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5042        let mut is_project_item = true;
 5043        let mut update = proto::UpdateActiveView::default();
 5044        if window.is_window_active() {
 5045            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5046
 5047            if let Some(item) = active_item
 5048                && item.item_focus_handle(cx).contains_focused(window, cx)
 5049            {
 5050                let leader_id = self
 5051                    .pane_for(&*item)
 5052                    .and_then(|pane| self.leader_for_pane(&pane));
 5053                let leader_peer_id = match leader_id {
 5054                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5055                    Some(CollaboratorId::Agent) | None => None,
 5056                };
 5057
 5058                if let Some(item) = item.to_followable_item_handle(cx) {
 5059                    let id = item
 5060                        .remote_id(&self.app_state.client, window, cx)
 5061                        .map(|id| id.to_proto());
 5062
 5063                    if let Some(id) = id
 5064                        && let Some(variant) = item.to_state_proto(window, cx)
 5065                    {
 5066                        let view = Some(proto::View {
 5067                            id: id.clone(),
 5068                            leader_id: leader_peer_id,
 5069                            variant: Some(variant),
 5070                            panel_id: panel_id.map(|id| id as i32),
 5071                        });
 5072
 5073                        is_project_item = item.is_project_item(window, cx);
 5074                        update = proto::UpdateActiveView {
 5075                            view,
 5076                            // TODO: Remove after version 0.145.x stabilizes.
 5077                            id,
 5078                            leader_id: leader_peer_id,
 5079                        };
 5080                    };
 5081                }
 5082            }
 5083        }
 5084
 5085        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5086        if active_view_id != self.last_active_view_id.as_ref() {
 5087            self.last_active_view_id = active_view_id.cloned();
 5088            self.update_followers(
 5089                is_project_item,
 5090                proto::update_followers::Variant::UpdateActiveView(update),
 5091                window,
 5092                cx,
 5093            );
 5094        }
 5095    }
 5096
 5097    fn active_item_for_followers(
 5098        &self,
 5099        window: &mut Window,
 5100        cx: &mut App,
 5101    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5102        let mut active_item = None;
 5103        let mut panel_id = None;
 5104        for dock in self.all_docks() {
 5105            if dock.focus_handle(cx).contains_focused(window, cx)
 5106                && let Some(panel) = dock.read(cx).active_panel()
 5107                && let Some(pane) = panel.pane(cx)
 5108                && let Some(item) = pane.read(cx).active_item()
 5109            {
 5110                active_item = Some(item);
 5111                panel_id = panel.remote_id();
 5112                break;
 5113            }
 5114        }
 5115
 5116        if active_item.is_none() {
 5117            active_item = self.active_pane().read(cx).active_item();
 5118        }
 5119        (active_item, panel_id)
 5120    }
 5121
 5122    fn update_followers(
 5123        &self,
 5124        project_only: bool,
 5125        update: proto::update_followers::Variant,
 5126        _: &mut Window,
 5127        cx: &mut App,
 5128    ) -> Option<()> {
 5129        // If this update only applies to for followers in the current project,
 5130        // then skip it unless this project is shared. If it applies to all
 5131        // followers, regardless of project, then set `project_id` to none,
 5132        // indicating that it goes to all followers.
 5133        let project_id = if project_only {
 5134            Some(self.project.read(cx).remote_id()?)
 5135        } else {
 5136            None
 5137        };
 5138        self.app_state().workspace_store.update(cx, |store, cx| {
 5139            store.update_followers(project_id, update, cx)
 5140        })
 5141    }
 5142
 5143    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5144        self.follower_states.iter().find_map(|(leader_id, state)| {
 5145            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5146                Some(*leader_id)
 5147            } else {
 5148                None
 5149            }
 5150        })
 5151    }
 5152
 5153    fn leader_updated(
 5154        &mut self,
 5155        leader_id: impl Into<CollaboratorId>,
 5156        window: &mut Window,
 5157        cx: &mut Context<Self>,
 5158    ) -> Option<Box<dyn ItemHandle>> {
 5159        cx.notify();
 5160
 5161        let leader_id = leader_id.into();
 5162        let (panel_id, item) = match leader_id {
 5163            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5164            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5165        };
 5166
 5167        let state = self.follower_states.get(&leader_id)?;
 5168        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5169        let pane;
 5170        if let Some(panel_id) = panel_id {
 5171            pane = self
 5172                .activate_panel_for_proto_id(panel_id, window, cx)?
 5173                .pane(cx)?;
 5174            let state = self.follower_states.get_mut(&leader_id)?;
 5175            state.dock_pane = Some(pane.clone());
 5176        } else {
 5177            pane = state.center_pane.clone();
 5178            let state = self.follower_states.get_mut(&leader_id)?;
 5179            if let Some(dock_pane) = state.dock_pane.take() {
 5180                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5181            }
 5182        }
 5183
 5184        pane.update(cx, |pane, cx| {
 5185            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5186            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5187                pane.activate_item(index, false, false, window, cx);
 5188            } else {
 5189                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5190            }
 5191
 5192            if focus_active_item {
 5193                pane.focus_active_item(window, cx)
 5194            }
 5195        });
 5196
 5197        Some(item)
 5198    }
 5199
 5200    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5201        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5202        let active_view_id = state.active_view_id?;
 5203        Some(
 5204            state
 5205                .items_by_leader_view_id
 5206                .get(&active_view_id)?
 5207                .view
 5208                .boxed_clone(),
 5209        )
 5210    }
 5211
 5212    fn active_item_for_peer(
 5213        &self,
 5214        peer_id: PeerId,
 5215        window: &mut Window,
 5216        cx: &mut Context<Self>,
 5217    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5218        let call = self.active_call()?;
 5219        let room = call.read(cx).room()?.read(cx);
 5220        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5221        let leader_in_this_app;
 5222        let leader_in_this_project;
 5223        match participant.location {
 5224            call::ParticipantLocation::SharedProject { project_id } => {
 5225                leader_in_this_app = true;
 5226                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5227            }
 5228            call::ParticipantLocation::UnsharedProject => {
 5229                leader_in_this_app = true;
 5230                leader_in_this_project = false;
 5231            }
 5232            call::ParticipantLocation::External => {
 5233                leader_in_this_app = false;
 5234                leader_in_this_project = false;
 5235            }
 5236        };
 5237        let state = self.follower_states.get(&peer_id.into())?;
 5238        let mut item_to_activate = None;
 5239        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5240            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5241                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5242            {
 5243                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5244            }
 5245        } else if let Some(shared_screen) =
 5246            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5247        {
 5248            item_to_activate = Some((None, Box::new(shared_screen)));
 5249        }
 5250        item_to_activate
 5251    }
 5252
 5253    fn shared_screen_for_peer(
 5254        &self,
 5255        peer_id: PeerId,
 5256        pane: &Entity<Pane>,
 5257        window: &mut Window,
 5258        cx: &mut App,
 5259    ) -> Option<Entity<SharedScreen>> {
 5260        let call = self.active_call()?;
 5261        let room = call.read(cx).room()?.clone();
 5262        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5263        let track = participant.video_tracks.values().next()?.clone();
 5264        let user = participant.user.clone();
 5265
 5266        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5267            if item.read(cx).peer_id == peer_id {
 5268                return Some(item);
 5269            }
 5270        }
 5271
 5272        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5273    }
 5274
 5275    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5276        if window.is_window_active() {
 5277            self.update_active_view_for_followers(window, cx);
 5278
 5279            if let Some(database_id) = self.database_id {
 5280                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5281                    .detach();
 5282            }
 5283        } else {
 5284            for pane in &self.panes {
 5285                pane.update(cx, |pane, cx| {
 5286                    if let Some(item) = pane.active_item() {
 5287                        item.workspace_deactivated(window, cx);
 5288                    }
 5289                    for item in pane.items() {
 5290                        if matches!(
 5291                            item.workspace_settings(cx).autosave,
 5292                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5293                        ) {
 5294                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5295                                .detach_and_log_err(cx);
 5296                        }
 5297                    }
 5298                });
 5299            }
 5300        }
 5301    }
 5302
 5303    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5304        self.active_call.as_ref().map(|(call, _)| call)
 5305    }
 5306
 5307    fn on_active_call_event(
 5308        &mut self,
 5309        _: &Entity<ActiveCall>,
 5310        event: &call::room::Event,
 5311        window: &mut Window,
 5312        cx: &mut Context<Self>,
 5313    ) {
 5314        match event {
 5315            call::room::Event::ParticipantLocationChanged { participant_id }
 5316            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5317                self.leader_updated(participant_id, window, cx);
 5318            }
 5319            _ => {}
 5320        }
 5321    }
 5322
 5323    pub fn database_id(&self) -> Option<WorkspaceId> {
 5324        self.database_id
 5325    }
 5326
 5327    pub fn session_id(&self) -> Option<String> {
 5328        self.session_id.clone()
 5329    }
 5330
 5331    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5332        let project = self.project().read(cx);
 5333        project
 5334            .visible_worktrees(cx)
 5335            .map(|worktree| worktree.read(cx).abs_path())
 5336            .collect::<Vec<_>>()
 5337    }
 5338
 5339    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5340        match member {
 5341            Member::Axis(PaneAxis { members, .. }) => {
 5342                for child in members.iter() {
 5343                    self.remove_panes(child.clone(), window, cx)
 5344                }
 5345            }
 5346            Member::Pane(pane) => {
 5347                self.force_remove_pane(&pane, &None, window, cx);
 5348            }
 5349        }
 5350    }
 5351
 5352    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5353        self.session_id.take();
 5354        self.serialize_workspace_internal(window, cx)
 5355    }
 5356
 5357    fn force_remove_pane(
 5358        &mut self,
 5359        pane: &Entity<Pane>,
 5360        focus_on: &Option<Entity<Pane>>,
 5361        window: &mut Window,
 5362        cx: &mut Context<Workspace>,
 5363    ) {
 5364        self.panes.retain(|p| p != pane);
 5365        if let Some(focus_on) = focus_on {
 5366            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5367        } else if self.active_pane() == pane {
 5368            self.panes
 5369                .last()
 5370                .unwrap()
 5371                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5372        }
 5373        if self.last_active_center_pane == Some(pane.downgrade()) {
 5374            self.last_active_center_pane = None;
 5375        }
 5376        cx.notify();
 5377    }
 5378
 5379    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5380        if self._schedule_serialize_workspace.is_none() {
 5381            self._schedule_serialize_workspace =
 5382                Some(cx.spawn_in(window, async move |this, cx| {
 5383                    cx.background_executor()
 5384                        .timer(SERIALIZATION_THROTTLE_TIME)
 5385                        .await;
 5386                    this.update_in(cx, |this, window, cx| {
 5387                        this.serialize_workspace_internal(window, cx).detach();
 5388                        this._schedule_serialize_workspace.take();
 5389                    })
 5390                    .log_err();
 5391                }));
 5392        }
 5393    }
 5394
 5395    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5396        let Some(database_id) = self.database_id() else {
 5397            return Task::ready(());
 5398        };
 5399
 5400        fn serialize_pane_handle(
 5401            pane_handle: &Entity<Pane>,
 5402            window: &mut Window,
 5403            cx: &mut App,
 5404        ) -> SerializedPane {
 5405            let (items, active, pinned_count) = {
 5406                let pane = pane_handle.read(cx);
 5407                let active_item_id = pane.active_item().map(|item| item.item_id());
 5408                (
 5409                    pane.items()
 5410                        .filter_map(|handle| {
 5411                            let handle = handle.to_serializable_item_handle(cx)?;
 5412
 5413                            Some(SerializedItem {
 5414                                kind: Arc::from(handle.serialized_item_kind()),
 5415                                item_id: handle.item_id().as_u64(),
 5416                                active: Some(handle.item_id()) == active_item_id,
 5417                                preview: pane.is_active_preview_item(handle.item_id()),
 5418                            })
 5419                        })
 5420                        .collect::<Vec<_>>(),
 5421                    pane.has_focus(window, cx),
 5422                    pane.pinned_count(),
 5423                )
 5424            };
 5425
 5426            SerializedPane::new(items, active, pinned_count)
 5427        }
 5428
 5429        fn build_serialized_pane_group(
 5430            pane_group: &Member,
 5431            window: &mut Window,
 5432            cx: &mut App,
 5433        ) -> SerializedPaneGroup {
 5434            match pane_group {
 5435                Member::Axis(PaneAxis {
 5436                    axis,
 5437                    members,
 5438                    flexes,
 5439                    bounding_boxes: _,
 5440                }) => SerializedPaneGroup::Group {
 5441                    axis: SerializedAxis(*axis),
 5442                    children: members
 5443                        .iter()
 5444                        .map(|member| build_serialized_pane_group(member, window, cx))
 5445                        .collect::<Vec<_>>(),
 5446                    flexes: Some(flexes.lock().clone()),
 5447                },
 5448                Member::Pane(pane_handle) => {
 5449                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5450                }
 5451            }
 5452        }
 5453
 5454        fn build_serialized_docks(
 5455            this: &Workspace,
 5456            window: &mut Window,
 5457            cx: &mut App,
 5458        ) -> DockStructure {
 5459            let left_dock = this.left_dock.read(cx);
 5460            let left_visible = left_dock.is_open();
 5461            let left_active_panel = left_dock
 5462                .active_panel()
 5463                .map(|panel| panel.persistent_name().to_string());
 5464            let left_dock_zoom = left_dock
 5465                .active_panel()
 5466                .map(|panel| panel.is_zoomed(window, cx))
 5467                .unwrap_or(false);
 5468
 5469            let right_dock = this.right_dock.read(cx);
 5470            let right_visible = right_dock.is_open();
 5471            let right_active_panel = right_dock
 5472                .active_panel()
 5473                .map(|panel| panel.persistent_name().to_string());
 5474            let right_dock_zoom = right_dock
 5475                .active_panel()
 5476                .map(|panel| panel.is_zoomed(window, cx))
 5477                .unwrap_or(false);
 5478
 5479            let bottom_dock = this.bottom_dock.read(cx);
 5480            let bottom_visible = bottom_dock.is_open();
 5481            let bottom_active_panel = bottom_dock
 5482                .active_panel()
 5483                .map(|panel| panel.persistent_name().to_string());
 5484            let bottom_dock_zoom = bottom_dock
 5485                .active_panel()
 5486                .map(|panel| panel.is_zoomed(window, cx))
 5487                .unwrap_or(false);
 5488
 5489            DockStructure {
 5490                left: DockData {
 5491                    visible: left_visible,
 5492                    active_panel: left_active_panel,
 5493                    zoom: left_dock_zoom,
 5494                },
 5495                right: DockData {
 5496                    visible: right_visible,
 5497                    active_panel: right_active_panel,
 5498                    zoom: right_dock_zoom,
 5499                },
 5500                bottom: DockData {
 5501                    visible: bottom_visible,
 5502                    active_panel: bottom_active_panel,
 5503                    zoom: bottom_dock_zoom,
 5504                },
 5505            }
 5506        }
 5507
 5508        match self.serialize_workspace_location(cx) {
 5509            WorkspaceLocation::Location(location, paths) => {
 5510                let breakpoints = self.project.update(cx, |project, cx| {
 5511                    project
 5512                        .breakpoint_store()
 5513                        .read(cx)
 5514                        .all_source_breakpoints(cx)
 5515                });
 5516                let user_toolchains = self
 5517                    .project
 5518                    .read(cx)
 5519                    .user_toolchains(cx)
 5520                    .unwrap_or_default();
 5521
 5522                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5523                let docks = build_serialized_docks(self, window, cx);
 5524                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5525
 5526                let serialized_workspace = SerializedWorkspace {
 5527                    id: database_id,
 5528                    location,
 5529                    paths,
 5530                    center_group,
 5531                    window_bounds,
 5532                    display: Default::default(),
 5533                    docks,
 5534                    centered_layout: self.centered_layout,
 5535                    session_id: self.session_id.clone(),
 5536                    breakpoints,
 5537                    window_id: Some(window.window_handle().window_id().as_u64()),
 5538                    user_toolchains,
 5539                };
 5540
 5541                window.spawn(cx, async move |_| {
 5542                    persistence::DB.save_workspace(serialized_workspace).await;
 5543                })
 5544            }
 5545            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5546                persistence::DB
 5547                    .set_session_id(database_id, None)
 5548                    .await
 5549                    .log_err();
 5550            }),
 5551            WorkspaceLocation::None => Task::ready(()),
 5552        }
 5553    }
 5554
 5555    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5556        let paths = PathList::new(&self.root_paths(cx));
 5557        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5558            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5559        } else if self.project.read(cx).is_local() {
 5560            if !paths.is_empty() {
 5561                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5562            } else {
 5563                WorkspaceLocation::DetachFromSession
 5564            }
 5565        } else {
 5566            WorkspaceLocation::None
 5567        }
 5568    }
 5569
 5570    fn update_history(&self, cx: &mut App) {
 5571        let Some(id) = self.database_id() else {
 5572            return;
 5573        };
 5574        if !self.project.read(cx).is_local() {
 5575            return;
 5576        }
 5577        if let Some(manager) = HistoryManager::global(cx) {
 5578            let paths = PathList::new(&self.root_paths(cx));
 5579            manager.update(cx, |this, cx| {
 5580                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5581            });
 5582        }
 5583    }
 5584
 5585    async fn serialize_items(
 5586        this: &WeakEntity<Self>,
 5587        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5588        cx: &mut AsyncWindowContext,
 5589    ) -> Result<()> {
 5590        const CHUNK_SIZE: usize = 200;
 5591
 5592        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5593
 5594        while let Some(items_received) = serializable_items.next().await {
 5595            let unique_items =
 5596                items_received
 5597                    .into_iter()
 5598                    .fold(HashMap::default(), |mut acc, item| {
 5599                        acc.entry(item.item_id()).or_insert(item);
 5600                        acc
 5601                    });
 5602
 5603            // We use into_iter() here so that the references to the items are moved into
 5604            // the tasks and not kept alive while we're sleeping.
 5605            for (_, item) in unique_items.into_iter() {
 5606                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5607                    item.serialize(workspace, false, window, cx)
 5608                }) {
 5609                    cx.background_spawn(async move { task.await.log_err() })
 5610                        .detach();
 5611                }
 5612            }
 5613
 5614            cx.background_executor()
 5615                .timer(SERIALIZATION_THROTTLE_TIME)
 5616                .await;
 5617        }
 5618
 5619        Ok(())
 5620    }
 5621
 5622    pub(crate) fn enqueue_item_serialization(
 5623        &mut self,
 5624        item: Box<dyn SerializableItemHandle>,
 5625    ) -> Result<()> {
 5626        self.serializable_items_tx
 5627            .unbounded_send(item)
 5628            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5629    }
 5630
 5631    pub(crate) fn load_workspace(
 5632        serialized_workspace: SerializedWorkspace,
 5633        paths_to_open: Vec<Option<ProjectPath>>,
 5634        window: &mut Window,
 5635        cx: &mut Context<Workspace>,
 5636    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5637        cx.spawn_in(window, async move |workspace, cx| {
 5638            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5639
 5640            let mut center_group = None;
 5641            let mut center_items = None;
 5642
 5643            // Traverse the splits tree and add to things
 5644            if let Some((group, active_pane, items)) = serialized_workspace
 5645                .center_group
 5646                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5647                .await
 5648            {
 5649                center_items = Some(items);
 5650                center_group = Some((group, active_pane))
 5651            }
 5652
 5653            let mut items_by_project_path = HashMap::default();
 5654            let mut item_ids_by_kind = HashMap::default();
 5655            let mut all_deserialized_items = Vec::default();
 5656            cx.update(|_, cx| {
 5657                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5658                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5659                        item_ids_by_kind
 5660                            .entry(serializable_item_handle.serialized_item_kind())
 5661                            .or_insert(Vec::new())
 5662                            .push(item.item_id().as_u64() as ItemId);
 5663                    }
 5664
 5665                    if let Some(project_path) = item.project_path(cx) {
 5666                        items_by_project_path.insert(project_path, item.clone());
 5667                    }
 5668                    all_deserialized_items.push(item);
 5669                }
 5670            })?;
 5671
 5672            let opened_items = paths_to_open
 5673                .into_iter()
 5674                .map(|path_to_open| {
 5675                    path_to_open
 5676                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5677                })
 5678                .collect::<Vec<_>>();
 5679
 5680            // Remove old panes from workspace panes list
 5681            workspace.update_in(cx, |workspace, window, cx| {
 5682                if let Some((center_group, active_pane)) = center_group {
 5683                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5684
 5685                    // Swap workspace center group
 5686                    workspace.center = PaneGroup::with_root(center_group);
 5687                    if let Some(active_pane) = active_pane {
 5688                        workspace.set_active_pane(&active_pane, window, cx);
 5689                        cx.focus_self(window);
 5690                    } else {
 5691                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5692                    }
 5693                }
 5694
 5695                let docks = serialized_workspace.docks;
 5696
 5697                for (dock, serialized_dock) in [
 5698                    (&mut workspace.right_dock, docks.right),
 5699                    (&mut workspace.left_dock, docks.left),
 5700                    (&mut workspace.bottom_dock, docks.bottom),
 5701                ]
 5702                .iter_mut()
 5703                {
 5704                    dock.update(cx, |dock, cx| {
 5705                        dock.serialized_dock = Some(serialized_dock.clone());
 5706                        dock.restore_state(window, cx);
 5707                    });
 5708                }
 5709
 5710                cx.notify();
 5711            })?;
 5712
 5713            let _ = project
 5714                .update(cx, |project, cx| {
 5715                    project
 5716                        .breakpoint_store()
 5717                        .update(cx, |breakpoint_store, cx| {
 5718                            breakpoint_store
 5719                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5720                        })
 5721                })?
 5722                .await;
 5723
 5724            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5725            // after loading the items, we might have different items and in order to avoid
 5726            // the database filling up, we delete items that haven't been loaded now.
 5727            //
 5728            // The items that have been loaded, have been saved after they've been added to the workspace.
 5729            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5730                item_ids_by_kind
 5731                    .into_iter()
 5732                    .map(|(item_kind, loaded_items)| {
 5733                        SerializableItemRegistry::cleanup(
 5734                            item_kind,
 5735                            serialized_workspace.id,
 5736                            loaded_items,
 5737                            window,
 5738                            cx,
 5739                        )
 5740                        .log_err()
 5741                    })
 5742                    .collect::<Vec<_>>()
 5743            })?;
 5744
 5745            futures::future::join_all(clean_up_tasks).await;
 5746
 5747            workspace
 5748                .update_in(cx, |workspace, window, cx| {
 5749                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5750                    workspace.serialize_workspace_internal(window, cx).detach();
 5751
 5752                    // Ensure that we mark the window as edited if we did load dirty items
 5753                    workspace.update_window_edited(window, cx);
 5754                })
 5755                .ok();
 5756
 5757            Ok(opened_items)
 5758        })
 5759    }
 5760
 5761    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5762        self.add_workspace_actions_listeners(div, window, cx)
 5763            .on_action(cx.listener(
 5764                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5765                    for action in &action_sequence.0 {
 5766                        window.dispatch_action(action.boxed_clone(), cx);
 5767                    }
 5768                },
 5769            ))
 5770            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5771            .on_action(cx.listener(Self::close_all_items_and_panes))
 5772            .on_action(cx.listener(Self::save_all))
 5773            .on_action(cx.listener(Self::send_keystrokes))
 5774            .on_action(cx.listener(Self::add_folder_to_project))
 5775            .on_action(cx.listener(Self::follow_next_collaborator))
 5776            .on_action(cx.listener(Self::close_window))
 5777            .on_action(cx.listener(Self::activate_pane_at_index))
 5778            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5779            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5780            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5781            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5782                let pane = workspace.active_pane().clone();
 5783                workspace.unfollow_in_pane(&pane, window, cx);
 5784            }))
 5785            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5786                workspace
 5787                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5788                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5789            }))
 5790            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5791                workspace
 5792                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5793                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5794            }))
 5795            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5796                workspace
 5797                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5798                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5799            }))
 5800            .on_action(
 5801                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5802                    workspace.activate_previous_pane(window, cx)
 5803                }),
 5804            )
 5805            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5806                workspace.activate_next_pane(window, cx)
 5807            }))
 5808            .on_action(
 5809                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5810                    workspace.activate_next_window(cx)
 5811                }),
 5812            )
 5813            .on_action(
 5814                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5815                    workspace.activate_previous_window(cx)
 5816                }),
 5817            )
 5818            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5819                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5820            }))
 5821            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5822                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5823            }))
 5824            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5825                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5826            }))
 5827            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5828                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5829            }))
 5830            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5831                workspace.activate_next_pane(window, cx)
 5832            }))
 5833            .on_action(cx.listener(
 5834                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5835                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5836                },
 5837            ))
 5838            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5839                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5840            }))
 5841            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5842                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5843            }))
 5844            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5845                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5846            }))
 5847            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5848                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5849            }))
 5850            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5851                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5852                    SplitDirection::Down,
 5853                    SplitDirection::Up,
 5854                    SplitDirection::Right,
 5855                    SplitDirection::Left,
 5856                ];
 5857                for dir in DIRECTION_PRIORITY {
 5858                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 5859                        workspace.swap_pane_in_direction(dir, cx);
 5860                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 5861                        break;
 5862                    }
 5863                }
 5864            }))
 5865            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5866                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5867            }))
 5868            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5869                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5870            }))
 5871            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5872                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5873            }))
 5874            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5875                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5876            }))
 5877            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5878                this.toggle_dock(DockPosition::Left, window, cx);
 5879            }))
 5880            .on_action(cx.listener(
 5881                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5882                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5883                },
 5884            ))
 5885            .on_action(cx.listener(
 5886                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5887                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5888                },
 5889            ))
 5890            .on_action(cx.listener(
 5891                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5892                    if !workspace.close_active_dock(window, cx) {
 5893                        cx.propagate();
 5894                    }
 5895                },
 5896            ))
 5897            .on_action(
 5898                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5899                    workspace.close_all_docks(window, cx);
 5900                }),
 5901            )
 5902            .on_action(cx.listener(Self::toggle_all_docks))
 5903            .on_action(cx.listener(
 5904                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5905                    workspace.clear_all_notifications(cx);
 5906                },
 5907            ))
 5908            .on_action(cx.listener(
 5909                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 5910                    workspace.clear_navigation_history(window, cx);
 5911                },
 5912            ))
 5913            .on_action(cx.listener(
 5914                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5915                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5916                        workspace.suppress_notification(&notification_id, cx);
 5917                    }
 5918                },
 5919            ))
 5920            .on_action(cx.listener(
 5921                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5922                    workspace.reopen_closed_item(window, cx).detach();
 5923                },
 5924            ))
 5925            .on_action(cx.listener(
 5926                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5927                    for dock in workspace.all_docks() {
 5928                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5929                            let Some(panel) = dock.read(cx).active_panel() else {
 5930                                return;
 5931                            };
 5932
 5933                            // Set to `None`, then the size will fall back to the default.
 5934                            panel.clone().set_size(None, window, cx);
 5935
 5936                            return;
 5937                        }
 5938                    }
 5939                },
 5940            ))
 5941            .on_action(cx.listener(
 5942                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5943                    for dock in workspace.all_docks() {
 5944                        if let Some(panel) = dock.read(cx).visible_panel() {
 5945                            // Set to `None`, then the size will fall back to the default.
 5946                            panel.clone().set_size(None, window, cx);
 5947                        }
 5948                    }
 5949                },
 5950            ))
 5951            .on_action(cx.listener(
 5952                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5953                    adjust_active_dock_size_by_px(
 5954                        px_with_ui_font_fallback(act.px, cx),
 5955                        workspace,
 5956                        window,
 5957                        cx,
 5958                    );
 5959                },
 5960            ))
 5961            .on_action(cx.listener(
 5962                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5963                    adjust_active_dock_size_by_px(
 5964                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5965                        workspace,
 5966                        window,
 5967                        cx,
 5968                    );
 5969                },
 5970            ))
 5971            .on_action(cx.listener(
 5972                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5973                    adjust_open_docks_size_by_px(
 5974                        px_with_ui_font_fallback(act.px, cx),
 5975                        workspace,
 5976                        window,
 5977                        cx,
 5978                    );
 5979                },
 5980            ))
 5981            .on_action(cx.listener(
 5982                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5983                    adjust_open_docks_size_by_px(
 5984                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5985                        workspace,
 5986                        window,
 5987                        cx,
 5988                    );
 5989                },
 5990            ))
 5991            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5992            .on_action(cx.listener(
 5993                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 5994                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 5995                        let dock = active_dock.read(cx);
 5996                        if let Some(active_panel) = dock.active_panel() {
 5997                            if active_panel.pane(cx).is_none() {
 5998                                let mut recent_pane: Option<Entity<Pane>> = None;
 5999                                let mut recent_timestamp = 0;
 6000                                for pane_handle in workspace.panes() {
 6001                                    let pane = pane_handle.read(cx);
 6002                                    for entry in pane.activation_history() {
 6003                                        if entry.timestamp > recent_timestamp {
 6004                                            recent_timestamp = entry.timestamp;
 6005                                            recent_pane = Some(pane_handle.clone());
 6006                                        }
 6007                                    }
 6008                                }
 6009
 6010                                if let Some(pane) = recent_pane {
 6011                                    pane.update(cx, |pane, cx| {
 6012                                        let current_index = pane.active_item_index();
 6013                                        let items_len = pane.items_len();
 6014                                        if items_len > 0 {
 6015                                            let next_index = if current_index + 1 < items_len {
 6016                                                current_index + 1
 6017                                            } else {
 6018                                                0
 6019                                            };
 6020                                            pane.activate_item(
 6021                                                next_index, false, false, window, cx,
 6022                                            );
 6023                                        }
 6024                                    });
 6025                                    return;
 6026                                }
 6027                            }
 6028                        }
 6029                    }
 6030                    cx.propagate();
 6031                },
 6032            ))
 6033            .on_action(cx.listener(
 6034                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6035                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6036                        let dock = active_dock.read(cx);
 6037                        if let Some(active_panel) = dock.active_panel() {
 6038                            if active_panel.pane(cx).is_none() {
 6039                                let mut recent_pane: Option<Entity<Pane>> = None;
 6040                                let mut recent_timestamp = 0;
 6041                                for pane_handle in workspace.panes() {
 6042                                    let pane = pane_handle.read(cx);
 6043                                    for entry in pane.activation_history() {
 6044                                        if entry.timestamp > recent_timestamp {
 6045                                            recent_timestamp = entry.timestamp;
 6046                                            recent_pane = Some(pane_handle.clone());
 6047                                        }
 6048                                    }
 6049                                }
 6050
 6051                                if let Some(pane) = recent_pane {
 6052                                    pane.update(cx, |pane, cx| {
 6053                                        let current_index = pane.active_item_index();
 6054                                        let items_len = pane.items_len();
 6055                                        if items_len > 0 {
 6056                                            let prev_index = if current_index > 0 {
 6057                                                current_index - 1
 6058                                            } else {
 6059                                                items_len.saturating_sub(1)
 6060                                            };
 6061                                            pane.activate_item(
 6062                                                prev_index, false, false, window, cx,
 6063                                            );
 6064                                        }
 6065                                    });
 6066                                    return;
 6067                                }
 6068                            }
 6069                        }
 6070                    }
 6071                    cx.propagate();
 6072                },
 6073            ))
 6074            .on_action(cx.listener(Workspace::cancel))
 6075    }
 6076
 6077    #[cfg(any(test, feature = "test-support"))]
 6078    pub fn set_random_database_id(&mut self) {
 6079        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6080    }
 6081
 6082    #[cfg(any(test, feature = "test-support"))]
 6083    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6084        use node_runtime::NodeRuntime;
 6085        use session::Session;
 6086
 6087        let client = project.read(cx).client();
 6088        let user_store = project.read(cx).user_store();
 6089        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6090        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6091        window.activate_window();
 6092        let app_state = Arc::new(AppState {
 6093            languages: project.read(cx).languages().clone(),
 6094            workspace_store,
 6095            client,
 6096            user_store,
 6097            fs: project.read(cx).fs().clone(),
 6098            build_window_options: |_, _| Default::default(),
 6099            node_runtime: NodeRuntime::unavailable(),
 6100            session,
 6101        });
 6102        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6103        workspace
 6104            .active_pane
 6105            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 6106        workspace
 6107    }
 6108
 6109    pub fn register_action<A: Action>(
 6110        &mut self,
 6111        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6112    ) -> &mut Self {
 6113        let callback = Arc::new(callback);
 6114
 6115        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6116            let callback = callback.clone();
 6117            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6118                (callback)(workspace, event, window, cx)
 6119            }))
 6120        }));
 6121        self
 6122    }
 6123    pub fn register_action_renderer(
 6124        &mut self,
 6125        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6126    ) -> &mut Self {
 6127        self.workspace_actions.push(Box::new(callback));
 6128        self
 6129    }
 6130
 6131    fn add_workspace_actions_listeners(
 6132        &self,
 6133        mut div: Div,
 6134        window: &mut Window,
 6135        cx: &mut Context<Self>,
 6136    ) -> Div {
 6137        for action in self.workspace_actions.iter() {
 6138            div = (action)(div, self, window, cx)
 6139        }
 6140        div
 6141    }
 6142
 6143    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6144        self.modal_layer.read(cx).has_active_modal()
 6145    }
 6146
 6147    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6148        self.modal_layer.read(cx).active_modal()
 6149    }
 6150
 6151    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6152    where
 6153        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6154    {
 6155        self.modal_layer.update(cx, |modal_layer, cx| {
 6156            modal_layer.toggle_modal(window, cx, build)
 6157        })
 6158    }
 6159
 6160    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6161        self.modal_layer
 6162            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6163    }
 6164
 6165    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6166        self.toast_layer
 6167            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6168    }
 6169
 6170    pub fn toggle_centered_layout(
 6171        &mut self,
 6172        _: &ToggleCenteredLayout,
 6173        _: &mut Window,
 6174        cx: &mut Context<Self>,
 6175    ) {
 6176        self.centered_layout = !self.centered_layout;
 6177        if let Some(database_id) = self.database_id() {
 6178            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6179                .detach_and_log_err(cx);
 6180        }
 6181        cx.notify();
 6182    }
 6183
 6184    fn adjust_padding(padding: Option<f32>) -> f32 {
 6185        padding
 6186            .unwrap_or(CenteredPaddingSettings::default().0)
 6187            .clamp(
 6188                CenteredPaddingSettings::MIN_PADDING,
 6189                CenteredPaddingSettings::MAX_PADDING,
 6190            )
 6191    }
 6192
 6193    fn render_dock(
 6194        &self,
 6195        position: DockPosition,
 6196        dock: &Entity<Dock>,
 6197        window: &mut Window,
 6198        cx: &mut App,
 6199    ) -> Option<Div> {
 6200        if self.zoomed_position == Some(position) {
 6201            return None;
 6202        }
 6203
 6204        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6205            let pane = panel.pane(cx)?;
 6206            let follower_states = &self.follower_states;
 6207            leader_border_for_pane(follower_states, &pane, window, cx)
 6208        });
 6209
 6210        Some(
 6211            div()
 6212                .flex()
 6213                .flex_none()
 6214                .overflow_hidden()
 6215                .child(dock.clone())
 6216                .children(leader_border),
 6217        )
 6218    }
 6219
 6220    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6221        window.root().flatten()
 6222    }
 6223
 6224    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6225        self.zoomed.as_ref()
 6226    }
 6227
 6228    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6229        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6230            return;
 6231        };
 6232        let windows = cx.windows();
 6233        let next_window =
 6234            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6235                || {
 6236                    windows
 6237                        .iter()
 6238                        .cycle()
 6239                        .skip_while(|window| window.window_id() != current_window_id)
 6240                        .nth(1)
 6241                },
 6242            );
 6243
 6244        if let Some(window) = next_window {
 6245            window
 6246                .update(cx, |_, window, _| window.activate_window())
 6247                .ok();
 6248        }
 6249    }
 6250
 6251    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6252        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6253            return;
 6254        };
 6255        let windows = cx.windows();
 6256        let prev_window =
 6257            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6258                || {
 6259                    windows
 6260                        .iter()
 6261                        .rev()
 6262                        .cycle()
 6263                        .skip_while(|window| window.window_id() != current_window_id)
 6264                        .nth(1)
 6265                },
 6266            );
 6267
 6268        if let Some(window) = prev_window {
 6269            window
 6270                .update(cx, |_, window, _| window.activate_window())
 6271                .ok();
 6272        }
 6273    }
 6274
 6275    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6276        if cx.stop_active_drag(window) {
 6277        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6278            dismiss_app_notification(&notification_id, cx);
 6279        } else {
 6280            cx.propagate();
 6281        }
 6282    }
 6283
 6284    fn adjust_dock_size_by_px(
 6285        &mut self,
 6286        panel_size: Pixels,
 6287        dock_pos: DockPosition,
 6288        px: Pixels,
 6289        window: &mut Window,
 6290        cx: &mut Context<Self>,
 6291    ) {
 6292        match dock_pos {
 6293            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6294            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6295            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6296        }
 6297    }
 6298
 6299    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6300        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6301
 6302        self.left_dock.update(cx, |left_dock, cx| {
 6303            if WorkspaceSettings::get_global(cx)
 6304                .resize_all_panels_in_dock
 6305                .contains(&DockPosition::Left)
 6306            {
 6307                left_dock.resize_all_panels(Some(size), window, cx);
 6308            } else {
 6309                left_dock.resize_active_panel(Some(size), window, cx);
 6310            }
 6311        });
 6312    }
 6313
 6314    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6315        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6316        self.left_dock.read_with(cx, |left_dock, cx| {
 6317            let left_dock_size = left_dock
 6318                .active_panel_size(window, cx)
 6319                .unwrap_or(Pixels::ZERO);
 6320            if left_dock_size + size > self.bounds.right() {
 6321                size = self.bounds.right() - left_dock_size
 6322            }
 6323        });
 6324        self.right_dock.update(cx, |right_dock, cx| {
 6325            if WorkspaceSettings::get_global(cx)
 6326                .resize_all_panels_in_dock
 6327                .contains(&DockPosition::Right)
 6328            {
 6329                right_dock.resize_all_panels(Some(size), window, cx);
 6330            } else {
 6331                right_dock.resize_active_panel(Some(size), window, cx);
 6332            }
 6333        });
 6334    }
 6335
 6336    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6337        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6338        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6339            if WorkspaceSettings::get_global(cx)
 6340                .resize_all_panels_in_dock
 6341                .contains(&DockPosition::Bottom)
 6342            {
 6343                bottom_dock.resize_all_panels(Some(size), window, cx);
 6344            } else {
 6345                bottom_dock.resize_active_panel(Some(size), window, cx);
 6346            }
 6347        });
 6348    }
 6349
 6350    fn toggle_edit_predictions_all_files(
 6351        &mut self,
 6352        _: &ToggleEditPrediction,
 6353        _window: &mut Window,
 6354        cx: &mut Context<Self>,
 6355    ) {
 6356        let fs = self.project().read(cx).fs().clone();
 6357        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6358        update_settings_file(fs, cx, move |file, _| {
 6359            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6360        });
 6361    }
 6362}
 6363
 6364fn leader_border_for_pane(
 6365    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6366    pane: &Entity<Pane>,
 6367    _: &Window,
 6368    cx: &App,
 6369) -> Option<Div> {
 6370    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6371        if state.pane() == pane {
 6372            Some((*leader_id, state))
 6373        } else {
 6374            None
 6375        }
 6376    })?;
 6377
 6378    let mut leader_color = match leader_id {
 6379        CollaboratorId::PeerId(leader_peer_id) => {
 6380            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6381            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6382
 6383            cx.theme()
 6384                .players()
 6385                .color_for_participant(leader.participant_index.0)
 6386                .cursor
 6387        }
 6388        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6389    };
 6390    leader_color.fade_out(0.3);
 6391    Some(
 6392        div()
 6393            .absolute()
 6394            .size_full()
 6395            .left_0()
 6396            .top_0()
 6397            .border_2()
 6398            .border_color(leader_color),
 6399    )
 6400}
 6401
 6402fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6403    ZED_WINDOW_POSITION
 6404        .zip(*ZED_WINDOW_SIZE)
 6405        .map(|(position, size)| Bounds {
 6406            origin: position,
 6407            size,
 6408        })
 6409}
 6410
 6411fn open_items(
 6412    serialized_workspace: Option<SerializedWorkspace>,
 6413    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6414    window: &mut Window,
 6415    cx: &mut Context<Workspace>,
 6416) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6417    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6418        Workspace::load_workspace(
 6419            serialized_workspace,
 6420            project_paths_to_open
 6421                .iter()
 6422                .map(|(_, project_path)| project_path)
 6423                .cloned()
 6424                .collect(),
 6425            window,
 6426            cx,
 6427        )
 6428    });
 6429
 6430    cx.spawn_in(window, async move |workspace, cx| {
 6431        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6432
 6433        if let Some(restored_items) = restored_items {
 6434            let restored_items = restored_items.await?;
 6435
 6436            let restored_project_paths = restored_items
 6437                .iter()
 6438                .filter_map(|item| {
 6439                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6440                        .ok()
 6441                        .flatten()
 6442                })
 6443                .collect::<HashSet<_>>();
 6444
 6445            for restored_item in restored_items {
 6446                opened_items.push(restored_item.map(Ok));
 6447            }
 6448
 6449            project_paths_to_open
 6450                .iter_mut()
 6451                .for_each(|(_, project_path)| {
 6452                    if let Some(project_path_to_open) = project_path
 6453                        && restored_project_paths.contains(project_path_to_open)
 6454                    {
 6455                        *project_path = None;
 6456                    }
 6457                });
 6458        } else {
 6459            for _ in 0..project_paths_to_open.len() {
 6460                opened_items.push(None);
 6461            }
 6462        }
 6463        assert!(opened_items.len() == project_paths_to_open.len());
 6464
 6465        let tasks =
 6466            project_paths_to_open
 6467                .into_iter()
 6468                .enumerate()
 6469                .map(|(ix, (abs_path, project_path))| {
 6470                    let workspace = workspace.clone();
 6471                    cx.spawn(async move |cx| {
 6472                        let file_project_path = project_path?;
 6473                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6474                            workspace.project().update(cx, |project, cx| {
 6475                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6476                            })
 6477                        });
 6478
 6479                        // We only want to open file paths here. If one of the items
 6480                        // here is a directory, it was already opened further above
 6481                        // with a `find_or_create_worktree`.
 6482                        if let Ok(task) = abs_path_task
 6483                            && task.await.is_none_or(|p| p.is_file())
 6484                        {
 6485                            return Some((
 6486                                ix,
 6487                                workspace
 6488                                    .update_in(cx, |workspace, window, cx| {
 6489                                        workspace.open_path(
 6490                                            file_project_path,
 6491                                            None,
 6492                                            true,
 6493                                            window,
 6494                                            cx,
 6495                                        )
 6496                                    })
 6497                                    .log_err()?
 6498                                    .await,
 6499                            ));
 6500                        }
 6501                        None
 6502                    })
 6503                });
 6504
 6505        let tasks = tasks.collect::<Vec<_>>();
 6506
 6507        let tasks = futures::future::join_all(tasks);
 6508        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6509            opened_items[ix] = Some(path_open_result);
 6510        }
 6511
 6512        Ok(opened_items)
 6513    })
 6514}
 6515
 6516enum ActivateInDirectionTarget {
 6517    Pane(Entity<Pane>),
 6518    Dock(Entity<Dock>),
 6519}
 6520
 6521fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6522    workspace
 6523        .update(cx, |workspace, _, cx| {
 6524            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6525                struct DatabaseFailedNotification;
 6526
 6527                workspace.show_notification(
 6528                    NotificationId::unique::<DatabaseFailedNotification>(),
 6529                    cx,
 6530                    |cx| {
 6531                        cx.new(|cx| {
 6532                            MessageNotification::new("Failed to load the database file.", cx)
 6533                                .primary_message("File an Issue")
 6534                                .primary_icon(IconName::Plus)
 6535                                .primary_on_click(|window, cx| {
 6536                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6537                                })
 6538                        })
 6539                    },
 6540                );
 6541            }
 6542        })
 6543        .log_err();
 6544}
 6545
 6546fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6547    if val == 0 {
 6548        ThemeSettings::get_global(cx).ui_font_size(cx)
 6549    } else {
 6550        px(val as f32)
 6551    }
 6552}
 6553
 6554fn adjust_active_dock_size_by_px(
 6555    px: Pixels,
 6556    workspace: &mut Workspace,
 6557    window: &mut Window,
 6558    cx: &mut Context<Workspace>,
 6559) {
 6560    let Some(active_dock) = workspace
 6561        .all_docks()
 6562        .into_iter()
 6563        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6564    else {
 6565        return;
 6566    };
 6567    let dock = active_dock.read(cx);
 6568    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6569        return;
 6570    };
 6571    let dock_pos = dock.position();
 6572    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6573}
 6574
 6575fn adjust_open_docks_size_by_px(
 6576    px: Pixels,
 6577    workspace: &mut Workspace,
 6578    window: &mut Window,
 6579    cx: &mut Context<Workspace>,
 6580) {
 6581    let docks = workspace
 6582        .all_docks()
 6583        .into_iter()
 6584        .filter_map(|dock| {
 6585            if dock.read(cx).is_open() {
 6586                let dock = dock.read(cx);
 6587                let panel_size = dock.active_panel_size(window, cx)?;
 6588                let dock_pos = dock.position();
 6589                Some((panel_size, dock_pos, px))
 6590            } else {
 6591                None
 6592            }
 6593        })
 6594        .collect::<Vec<_>>();
 6595
 6596    docks
 6597        .into_iter()
 6598        .for_each(|(panel_size, dock_pos, offset)| {
 6599            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6600        });
 6601}
 6602
 6603impl Focusable for Workspace {
 6604    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6605        self.active_pane.focus_handle(cx)
 6606    }
 6607}
 6608
 6609#[derive(Clone)]
 6610struct DraggedDock(DockPosition);
 6611
 6612impl Render for DraggedDock {
 6613    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6614        gpui::Empty
 6615    }
 6616}
 6617
 6618impl Render for Workspace {
 6619    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6620        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6621        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6622            log::info!("Rendered first frame");
 6623        }
 6624        let mut context = KeyContext::new_with_defaults();
 6625        context.add("Workspace");
 6626        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6627        if let Some(status) = self
 6628            .debugger_provider
 6629            .as_ref()
 6630            .and_then(|provider| provider.active_thread_state(cx))
 6631        {
 6632            match status {
 6633                ThreadStatus::Running | ThreadStatus::Stepping => {
 6634                    context.add("debugger_running");
 6635                }
 6636                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6637                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6638            }
 6639        }
 6640
 6641        if self.left_dock.read(cx).is_open() {
 6642            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6643                context.set("left_dock", active_panel.panel_key());
 6644            }
 6645        }
 6646
 6647        if self.right_dock.read(cx).is_open() {
 6648            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6649                context.set("right_dock", active_panel.panel_key());
 6650            }
 6651        }
 6652
 6653        if self.bottom_dock.read(cx).is_open() {
 6654            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6655                context.set("bottom_dock", active_panel.panel_key());
 6656            }
 6657        }
 6658
 6659        let centered_layout = self.centered_layout
 6660            && self.center.panes().len() == 1
 6661            && self.active_item(cx).is_some();
 6662        let render_padding = |size| {
 6663            (size > 0.0).then(|| {
 6664                div()
 6665                    .h_full()
 6666                    .w(relative(size))
 6667                    .bg(cx.theme().colors().editor_background)
 6668                    .border_color(cx.theme().colors().pane_group_border)
 6669            })
 6670        };
 6671        let paddings = if centered_layout {
 6672            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6673            (
 6674                render_padding(Self::adjust_padding(
 6675                    settings.left_padding.map(|padding| padding.0),
 6676                )),
 6677                render_padding(Self::adjust_padding(
 6678                    settings.right_padding.map(|padding| padding.0),
 6679                )),
 6680            )
 6681        } else {
 6682            (None, None)
 6683        };
 6684        let ui_font = theme::setup_ui_font(window, cx);
 6685
 6686        let theme = cx.theme().clone();
 6687        let colors = theme.colors();
 6688        let notification_entities = self
 6689            .notifications
 6690            .iter()
 6691            .map(|(_, notification)| notification.entity_id())
 6692            .collect::<Vec<_>>();
 6693        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6694
 6695        client_side_decorations(
 6696            self.actions(div(), window, cx)
 6697                .key_context(context)
 6698                .relative()
 6699                .size_full()
 6700                .flex()
 6701                .flex_col()
 6702                .font(ui_font)
 6703                .gap_0()
 6704                .justify_start()
 6705                .items_start()
 6706                .text_color(colors.text)
 6707                .overflow_hidden()
 6708                .children(self.titlebar_item.clone())
 6709                .on_modifiers_changed(move |_, _, cx| {
 6710                    for &id in &notification_entities {
 6711                        cx.notify(id);
 6712                    }
 6713                })
 6714                .child(
 6715                    div()
 6716                        .size_full()
 6717                        .relative()
 6718                        .flex_1()
 6719                        .flex()
 6720                        .flex_col()
 6721                        .child(
 6722                            div()
 6723                                .id("workspace")
 6724                                .bg(colors.background)
 6725                                .relative()
 6726                                .flex_1()
 6727                                .w_full()
 6728                                .flex()
 6729                                .flex_col()
 6730                                .overflow_hidden()
 6731                                .border_t_1()
 6732                                .border_b_1()
 6733                                .border_color(colors.border)
 6734                                .child({
 6735                                    let this = cx.entity();
 6736                                    canvas(
 6737                                        move |bounds, window, cx| {
 6738                                            this.update(cx, |this, cx| {
 6739                                                let bounds_changed = this.bounds != bounds;
 6740                                                this.bounds = bounds;
 6741
 6742                                                if bounds_changed {
 6743                                                    this.left_dock.update(cx, |dock, cx| {
 6744                                                        dock.clamp_panel_size(
 6745                                                            bounds.size.width,
 6746                                                            window,
 6747                                                            cx,
 6748                                                        )
 6749                                                    });
 6750
 6751                                                    this.right_dock.update(cx, |dock, cx| {
 6752                                                        dock.clamp_panel_size(
 6753                                                            bounds.size.width,
 6754                                                            window,
 6755                                                            cx,
 6756                                                        )
 6757                                                    });
 6758
 6759                                                    this.bottom_dock.update(cx, |dock, cx| {
 6760                                                        dock.clamp_panel_size(
 6761                                                            bounds.size.height,
 6762                                                            window,
 6763                                                            cx,
 6764                                                        )
 6765                                                    });
 6766                                                }
 6767                                            })
 6768                                        },
 6769                                        |_, _, _, _| {},
 6770                                    )
 6771                                    .absolute()
 6772                                    .size_full()
 6773                                })
 6774                                .when(self.zoomed.is_none(), |this| {
 6775                                    this.on_drag_move(cx.listener(
 6776                                        move |workspace,
 6777                                              e: &DragMoveEvent<DraggedDock>,
 6778                                              window,
 6779                                              cx| {
 6780                                            if workspace.previous_dock_drag_coordinates
 6781                                                != Some(e.event.position)
 6782                                            {
 6783                                                workspace.previous_dock_drag_coordinates =
 6784                                                    Some(e.event.position);
 6785                                                match e.drag(cx).0 {
 6786                                                    DockPosition::Left => {
 6787                                                        workspace.resize_left_dock(
 6788                                                            e.event.position.x
 6789                                                                - workspace.bounds.left(),
 6790                                                            window,
 6791                                                            cx,
 6792                                                        );
 6793                                                    }
 6794                                                    DockPosition::Right => {
 6795                                                        workspace.resize_right_dock(
 6796                                                            workspace.bounds.right()
 6797                                                                - e.event.position.x,
 6798                                                            window,
 6799                                                            cx,
 6800                                                        );
 6801                                                    }
 6802                                                    DockPosition::Bottom => {
 6803                                                        workspace.resize_bottom_dock(
 6804                                                            workspace.bounds.bottom()
 6805                                                                - e.event.position.y,
 6806                                                            window,
 6807                                                            cx,
 6808                                                        );
 6809                                                    }
 6810                                                };
 6811                                                workspace.serialize_workspace(window, cx);
 6812                                            }
 6813                                        },
 6814                                    ))
 6815                                })
 6816                                .child({
 6817                                    match bottom_dock_layout {
 6818                                        BottomDockLayout::Full => div()
 6819                                            .flex()
 6820                                            .flex_col()
 6821                                            .h_full()
 6822                                            .child(
 6823                                                div()
 6824                                                    .flex()
 6825                                                    .flex_row()
 6826                                                    .flex_1()
 6827                                                    .overflow_hidden()
 6828                                                    .children(self.render_dock(
 6829                                                        DockPosition::Left,
 6830                                                        &self.left_dock,
 6831                                                        window,
 6832                                                        cx,
 6833                                                    ))
 6834                                                    .child(
 6835                                                        div()
 6836                                                            .flex()
 6837                                                            .flex_col()
 6838                                                            .flex_1()
 6839                                                            .overflow_hidden()
 6840                                                            .child(
 6841                                                                h_flex()
 6842                                                                    .flex_1()
 6843                                                                    .when_some(
 6844                                                                        paddings.0,
 6845                                                                        |this, p| {
 6846                                                                            this.child(
 6847                                                                                p.border_r_1(),
 6848                                                                            )
 6849                                                                        },
 6850                                                                    )
 6851                                                                    .child(self.center.render(
 6852                                                                        self.zoomed.as_ref(),
 6853                                                                        &PaneRenderContext {
 6854                                                                            follower_states:
 6855                                                                                &self.follower_states,
 6856                                                                            active_call: self.active_call(),
 6857                                                                            active_pane: &self.active_pane,
 6858                                                                            app_state: &self.app_state,
 6859                                                                            project: &self.project,
 6860                                                                            workspace: &self.weak_self,
 6861                                                                        },
 6862                                                                        window,
 6863                                                                        cx,
 6864                                                                    ))
 6865                                                                    .when_some(
 6866                                                                        paddings.1,
 6867                                                                        |this, p| {
 6868                                                                            this.child(
 6869                                                                                p.border_l_1(),
 6870                                                                            )
 6871                                                                        },
 6872                                                                    ),
 6873                                                            ),
 6874                                                    )
 6875                                                    .children(self.render_dock(
 6876                                                        DockPosition::Right,
 6877                                                        &self.right_dock,
 6878                                                        window,
 6879                                                        cx,
 6880                                                    )),
 6881                                            )
 6882                                            .child(div().w_full().children(self.render_dock(
 6883                                                DockPosition::Bottom,
 6884                                                &self.bottom_dock,
 6885                                                window,
 6886                                                cx
 6887                                            ))),
 6888
 6889                                        BottomDockLayout::LeftAligned => div()
 6890                                            .flex()
 6891                                            .flex_row()
 6892                                            .h_full()
 6893                                            .child(
 6894                                                div()
 6895                                                    .flex()
 6896                                                    .flex_col()
 6897                                                    .flex_1()
 6898                                                    .h_full()
 6899                                                    .child(
 6900                                                        div()
 6901                                                            .flex()
 6902                                                            .flex_row()
 6903                                                            .flex_1()
 6904                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6905                                                            .child(
 6906                                                                div()
 6907                                                                    .flex()
 6908                                                                    .flex_col()
 6909                                                                    .flex_1()
 6910                                                                    .overflow_hidden()
 6911                                                                    .child(
 6912                                                                        h_flex()
 6913                                                                            .flex_1()
 6914                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6915                                                                            .child(self.center.render(
 6916                                                                                self.zoomed.as_ref(),
 6917                                                                                &PaneRenderContext {
 6918                                                                                    follower_states:
 6919                                                                                        &self.follower_states,
 6920                                                                                    active_call: self.active_call(),
 6921                                                                                    active_pane: &self.active_pane,
 6922                                                                                    app_state: &self.app_state,
 6923                                                                                    project: &self.project,
 6924                                                                                    workspace: &self.weak_self,
 6925                                                                                },
 6926                                                                                window,
 6927                                                                                cx,
 6928                                                                            ))
 6929                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6930                                                                    )
 6931                                                            )
 6932                                                    )
 6933                                                    .child(
 6934                                                        div()
 6935                                                            .w_full()
 6936                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6937                                                    ),
 6938                                            )
 6939                                            .children(self.render_dock(
 6940                                                DockPosition::Right,
 6941                                                &self.right_dock,
 6942                                                window,
 6943                                                cx,
 6944                                            )),
 6945
 6946                                        BottomDockLayout::RightAligned => div()
 6947                                            .flex()
 6948                                            .flex_row()
 6949                                            .h_full()
 6950                                            .children(self.render_dock(
 6951                                                DockPosition::Left,
 6952                                                &self.left_dock,
 6953                                                window,
 6954                                                cx,
 6955                                            ))
 6956                                            .child(
 6957                                                div()
 6958                                                    .flex()
 6959                                                    .flex_col()
 6960                                                    .flex_1()
 6961                                                    .h_full()
 6962                                                    .child(
 6963                                                        div()
 6964                                                            .flex()
 6965                                                            .flex_row()
 6966                                                            .flex_1()
 6967                                                            .child(
 6968                                                                div()
 6969                                                                    .flex()
 6970                                                                    .flex_col()
 6971                                                                    .flex_1()
 6972                                                                    .overflow_hidden()
 6973                                                                    .child(
 6974                                                                        h_flex()
 6975                                                                            .flex_1()
 6976                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6977                                                                            .child(self.center.render(
 6978                                                                                self.zoomed.as_ref(),
 6979                                                                                &PaneRenderContext {
 6980                                                                                    follower_states:
 6981                                                                                        &self.follower_states,
 6982                                                                                    active_call: self.active_call(),
 6983                                                                                    active_pane: &self.active_pane,
 6984                                                                                    app_state: &self.app_state,
 6985                                                                                    project: &self.project,
 6986                                                                                    workspace: &self.weak_self,
 6987                                                                                },
 6988                                                                                window,
 6989                                                                                cx,
 6990                                                                            ))
 6991                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6992                                                                    )
 6993                                                            )
 6994                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6995                                                    )
 6996                                                    .child(
 6997                                                        div()
 6998                                                            .w_full()
 6999                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7000                                                    ),
 7001                                            ),
 7002
 7003                                        BottomDockLayout::Contained => div()
 7004                                            .flex()
 7005                                            .flex_row()
 7006                                            .h_full()
 7007                                            .children(self.render_dock(
 7008                                                DockPosition::Left,
 7009                                                &self.left_dock,
 7010                                                window,
 7011                                                cx,
 7012                                            ))
 7013                                            .child(
 7014                                                div()
 7015                                                    .flex()
 7016                                                    .flex_col()
 7017                                                    .flex_1()
 7018                                                    .overflow_hidden()
 7019                                                    .child(
 7020                                                        h_flex()
 7021                                                            .flex_1()
 7022                                                            .when_some(paddings.0, |this, p| {
 7023                                                                this.child(p.border_r_1())
 7024                                                            })
 7025                                                            .child(self.center.render(
 7026                                                                self.zoomed.as_ref(),
 7027                                                                &PaneRenderContext {
 7028                                                                    follower_states:
 7029                                                                        &self.follower_states,
 7030                                                                    active_call: self.active_call(),
 7031                                                                    active_pane: &self.active_pane,
 7032                                                                    app_state: &self.app_state,
 7033                                                                    project: &self.project,
 7034                                                                    workspace: &self.weak_self,
 7035                                                                },
 7036                                                                window,
 7037                                                                cx,
 7038                                                            ))
 7039                                                            .when_some(paddings.1, |this, p| {
 7040                                                                this.child(p.border_l_1())
 7041                                                            }),
 7042                                                    )
 7043                                                    .children(self.render_dock(
 7044                                                        DockPosition::Bottom,
 7045                                                        &self.bottom_dock,
 7046                                                        window,
 7047                                                        cx,
 7048                                                    )),
 7049                                            )
 7050                                            .children(self.render_dock(
 7051                                                DockPosition::Right,
 7052                                                &self.right_dock,
 7053                                                window,
 7054                                                cx,
 7055                                            )),
 7056                                    }
 7057                                })
 7058                                .children(self.zoomed.as_ref().and_then(|view| {
 7059                                    let zoomed_view = view.upgrade()?;
 7060                                    let div = div()
 7061                                        .occlude()
 7062                                        .absolute()
 7063                                        .overflow_hidden()
 7064                                        .border_color(colors.border)
 7065                                        .bg(colors.background)
 7066                                        .child(zoomed_view)
 7067                                        .inset_0()
 7068                                        .shadow_lg();
 7069
 7070                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7071                                       return Some(div);
 7072                                    }
 7073
 7074                                    Some(match self.zoomed_position {
 7075                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7076                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7077                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7078                                        None => {
 7079                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7080                                        }
 7081                                    })
 7082                                }))
 7083                                .children(self.render_notifications(window, cx)),
 7084                        )
 7085                        .when(self.status_bar_visible(cx), |parent| {
 7086                            parent.child(self.status_bar.clone())
 7087                        })
 7088                        .child(self.modal_layer.clone())
 7089                        .child(self.toast_layer.clone()),
 7090                ),
 7091            window,
 7092            cx,
 7093        )
 7094    }
 7095}
 7096
 7097impl WorkspaceStore {
 7098    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7099        Self {
 7100            workspaces: Default::default(),
 7101            _subscriptions: vec![
 7102                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7103                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7104            ],
 7105            client,
 7106        }
 7107    }
 7108
 7109    pub fn update_followers(
 7110        &self,
 7111        project_id: Option<u64>,
 7112        update: proto::update_followers::Variant,
 7113        cx: &App,
 7114    ) -> Option<()> {
 7115        let active_call = ActiveCall::try_global(cx)?;
 7116        let room_id = active_call.read(cx).room()?.read(cx).id();
 7117        self.client
 7118            .send(proto::UpdateFollowers {
 7119                room_id,
 7120                project_id,
 7121                variant: Some(update),
 7122            })
 7123            .log_err()
 7124    }
 7125
 7126    pub async fn handle_follow(
 7127        this: Entity<Self>,
 7128        envelope: TypedEnvelope<proto::Follow>,
 7129        mut cx: AsyncApp,
 7130    ) -> Result<proto::FollowResponse> {
 7131        this.update(&mut cx, |this, cx| {
 7132            let follower = Follower {
 7133                project_id: envelope.payload.project_id,
 7134                peer_id: envelope.original_sender_id()?,
 7135            };
 7136
 7137            let mut response = proto::FollowResponse::default();
 7138            this.workspaces.retain(|workspace| {
 7139                workspace
 7140                    .update(cx, |workspace, window, cx| {
 7141                        let handler_response =
 7142                            workspace.handle_follow(follower.project_id, window, cx);
 7143                        if let Some(active_view) = handler_response.active_view
 7144                            && workspace.project.read(cx).remote_id() == follower.project_id
 7145                        {
 7146                            response.active_view = Some(active_view)
 7147                        }
 7148                    })
 7149                    .is_ok()
 7150            });
 7151
 7152            Ok(response)
 7153        })?
 7154    }
 7155
 7156    async fn handle_update_followers(
 7157        this: Entity<Self>,
 7158        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7159        mut cx: AsyncApp,
 7160    ) -> Result<()> {
 7161        let leader_id = envelope.original_sender_id()?;
 7162        let update = envelope.payload;
 7163
 7164        this.update(&mut cx, |this, cx| {
 7165            this.workspaces.retain(|workspace| {
 7166                workspace
 7167                    .update(cx, |workspace, window, cx| {
 7168                        let project_id = workspace.project.read(cx).remote_id();
 7169                        if update.project_id != project_id && update.project_id.is_some() {
 7170                            return;
 7171                        }
 7172                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7173                    })
 7174                    .is_ok()
 7175            });
 7176            Ok(())
 7177        })?
 7178    }
 7179
 7180    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7181        &self.workspaces
 7182    }
 7183}
 7184
 7185impl ViewId {
 7186    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7187        Ok(Self {
 7188            creator: message
 7189                .creator
 7190                .map(CollaboratorId::PeerId)
 7191                .context("creator is missing")?,
 7192            id: message.id,
 7193        })
 7194    }
 7195
 7196    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7197        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7198            Some(proto::ViewId {
 7199                creator: Some(peer_id),
 7200                id: self.id,
 7201            })
 7202        } else {
 7203            None
 7204        }
 7205    }
 7206}
 7207
 7208impl FollowerState {
 7209    fn pane(&self) -> &Entity<Pane> {
 7210        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7211    }
 7212}
 7213
 7214pub trait WorkspaceHandle {
 7215    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7216}
 7217
 7218impl WorkspaceHandle for Entity<Workspace> {
 7219    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7220        self.read(cx)
 7221            .worktrees(cx)
 7222            .flat_map(|worktree| {
 7223                let worktree_id = worktree.read(cx).id();
 7224                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7225                    worktree_id,
 7226                    path: f.path.clone(),
 7227                })
 7228            })
 7229            .collect::<Vec<_>>()
 7230    }
 7231}
 7232
 7233pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7234    DB.last_workspace().await.log_err().flatten()
 7235}
 7236
 7237pub fn last_session_workspace_locations(
 7238    last_session_id: &str,
 7239    last_session_window_stack: Option<Vec<WindowId>>,
 7240) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7241    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7242        .log_err()
 7243}
 7244
 7245actions!(
 7246    collab,
 7247    [
 7248        /// Opens the channel notes for the current call.
 7249        ///
 7250        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7251        /// channel in the collab panel.
 7252        ///
 7253        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7254        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7255        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7256        OpenChannelNotes,
 7257        /// Mutes your microphone.
 7258        Mute,
 7259        /// Deafens yourself (mute both microphone and speakers).
 7260        Deafen,
 7261        /// Leaves the current call.
 7262        LeaveCall,
 7263        /// Shares the current project with collaborators.
 7264        ShareProject,
 7265        /// Shares your screen with collaborators.
 7266        ScreenShare,
 7267        /// Copies the current room name and session id for debugging purposes.
 7268        CopyRoomId,
 7269    ]
 7270);
 7271actions!(
 7272    zed,
 7273    [
 7274        /// Opens the Zed log file.
 7275        OpenLog,
 7276        /// Reveals the Zed log file in the system file manager.
 7277        RevealLogInFileManager
 7278    ]
 7279);
 7280
 7281async fn join_channel_internal(
 7282    channel_id: ChannelId,
 7283    app_state: &Arc<AppState>,
 7284    requesting_window: Option<WindowHandle<Workspace>>,
 7285    active_call: &Entity<ActiveCall>,
 7286    cx: &mut AsyncApp,
 7287) -> Result<bool> {
 7288    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7289        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7290            return (false, None);
 7291        };
 7292
 7293        let already_in_channel = room.channel_id() == Some(channel_id);
 7294        let should_prompt = room.is_sharing_project()
 7295            && !room.remote_participants().is_empty()
 7296            && !already_in_channel;
 7297        let open_room = if already_in_channel {
 7298            active_call.room().cloned()
 7299        } else {
 7300            None
 7301        };
 7302        (should_prompt, open_room)
 7303    })?;
 7304
 7305    if let Some(room) = open_room {
 7306        let task = room.update(cx, |room, cx| {
 7307            if let Some((project, host)) = room.most_active_project(cx) {
 7308                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7309            }
 7310
 7311            None
 7312        })?;
 7313        if let Some(task) = task {
 7314            task.await?;
 7315        }
 7316        return anyhow::Ok(true);
 7317    }
 7318
 7319    if should_prompt {
 7320        if let Some(workspace) = requesting_window {
 7321            let answer = workspace
 7322                .update(cx, |_, window, cx| {
 7323                    window.prompt(
 7324                        PromptLevel::Warning,
 7325                        "Do you want to switch channels?",
 7326                        Some("Leaving this call will unshare your current project."),
 7327                        &["Yes, Join Channel", "Cancel"],
 7328                        cx,
 7329                    )
 7330                })?
 7331                .await;
 7332
 7333            if answer == Ok(1) {
 7334                return Ok(false);
 7335            }
 7336        } else {
 7337            return Ok(false); // unreachable!() hopefully
 7338        }
 7339    }
 7340
 7341    let client = cx.update(|cx| active_call.read(cx).client())?;
 7342
 7343    let mut client_status = client.status();
 7344
 7345    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7346    'outer: loop {
 7347        let Some(status) = client_status.recv().await else {
 7348            anyhow::bail!("error connecting");
 7349        };
 7350
 7351        match status {
 7352            Status::Connecting
 7353            | Status::Authenticating
 7354            | Status::Authenticated
 7355            | Status::Reconnecting
 7356            | Status::Reauthenticating
 7357            | Status::Reauthenticated => continue,
 7358            Status::Connected { .. } => break 'outer,
 7359            Status::SignedOut | Status::AuthenticationError => {
 7360                return Err(ErrorCode::SignedOut.into());
 7361            }
 7362            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7363            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7364                return Err(ErrorCode::Disconnected.into());
 7365            }
 7366        }
 7367    }
 7368
 7369    let room = active_call
 7370        .update(cx, |active_call, cx| {
 7371            active_call.join_channel(channel_id, cx)
 7372        })?
 7373        .await?;
 7374
 7375    let Some(room) = room else {
 7376        return anyhow::Ok(true);
 7377    };
 7378
 7379    room.update(cx, |room, _| room.room_update_completed())?
 7380        .await;
 7381
 7382    let task = room.update(cx, |room, cx| {
 7383        if let Some((project, host)) = room.most_active_project(cx) {
 7384            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7385        }
 7386
 7387        // If you are the first to join a channel, see if you should share your project.
 7388        if room.remote_participants().is_empty()
 7389            && !room.local_participant_is_guest()
 7390            && let Some(workspace) = requesting_window
 7391        {
 7392            let project = workspace.update(cx, |workspace, _, cx| {
 7393                let project = workspace.project.read(cx);
 7394
 7395                if !CallSettings::get_global(cx).share_on_join {
 7396                    return None;
 7397                }
 7398
 7399                if (project.is_local() || project.is_via_remote_server())
 7400                    && project.visible_worktrees(cx).any(|tree| {
 7401                        tree.read(cx)
 7402                            .root_entry()
 7403                            .is_some_and(|entry| entry.is_dir())
 7404                    })
 7405                {
 7406                    Some(workspace.project.clone())
 7407                } else {
 7408                    None
 7409                }
 7410            });
 7411            if let Ok(Some(project)) = project {
 7412                return Some(cx.spawn(async move |room, cx| {
 7413                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7414                        .await?;
 7415                    Ok(())
 7416                }));
 7417            }
 7418        }
 7419
 7420        None
 7421    })?;
 7422    if let Some(task) = task {
 7423        task.await?;
 7424        return anyhow::Ok(true);
 7425    }
 7426    anyhow::Ok(false)
 7427}
 7428
 7429pub fn join_channel(
 7430    channel_id: ChannelId,
 7431    app_state: Arc<AppState>,
 7432    requesting_window: Option<WindowHandle<Workspace>>,
 7433    cx: &mut App,
 7434) -> Task<Result<()>> {
 7435    let active_call = ActiveCall::global(cx);
 7436    cx.spawn(async move |cx| {
 7437        let result =
 7438            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7439                .await;
 7440
 7441        // join channel succeeded, and opened a window
 7442        if matches!(result, Ok(true)) {
 7443            return anyhow::Ok(());
 7444        }
 7445
 7446        // find an existing workspace to focus and show call controls
 7447        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7448        if active_window.is_none() {
 7449            // no open workspaces, make one to show the error in (blergh)
 7450            let (window_handle, _) = cx
 7451                .update(|cx| {
 7452                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7453                })?
 7454                .await?;
 7455
 7456            if result.is_ok() {
 7457                cx.update(|cx| {
 7458                    cx.dispatch_action(&OpenChannelNotes);
 7459                })
 7460                .log_err();
 7461            }
 7462
 7463            active_window = Some(window_handle);
 7464        }
 7465
 7466        if let Err(err) = result {
 7467            log::error!("failed to join channel: {}", err);
 7468            if let Some(active_window) = active_window {
 7469                active_window
 7470                    .update(cx, |_, window, cx| {
 7471                        let detail: SharedString = match err.error_code() {
 7472                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7473                            ErrorCode::UpgradeRequired => concat!(
 7474                                "Your are running an unsupported version of Zed. ",
 7475                                "Please update to continue."
 7476                            )
 7477                            .into(),
 7478                            ErrorCode::NoSuchChannel => concat!(
 7479                                "No matching channel was found. ",
 7480                                "Please check the link and try again."
 7481                            )
 7482                            .into(),
 7483                            ErrorCode::Forbidden => concat!(
 7484                                "This channel is private, and you do not have access. ",
 7485                                "Please ask someone to add you and try again."
 7486                            )
 7487                            .into(),
 7488                            ErrorCode::Disconnected => {
 7489                                "Please check your internet connection and try again.".into()
 7490                            }
 7491                            _ => format!("{}\n\nPlease try again.", err).into(),
 7492                        };
 7493                        window.prompt(
 7494                            PromptLevel::Critical,
 7495                            "Failed to join channel",
 7496                            Some(&detail),
 7497                            &["Ok"],
 7498                            cx,
 7499                        )
 7500                    })?
 7501                    .await
 7502                    .ok();
 7503            }
 7504        }
 7505
 7506        // return ok, we showed the error to the user.
 7507        anyhow::Ok(())
 7508    })
 7509}
 7510
 7511pub async fn get_any_active_workspace(
 7512    app_state: Arc<AppState>,
 7513    mut cx: AsyncApp,
 7514) -> anyhow::Result<WindowHandle<Workspace>> {
 7515    // find an existing workspace to focus and show call controls
 7516    let active_window = activate_any_workspace_window(&mut cx);
 7517    if active_window.is_none() {
 7518        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7519            .await?;
 7520    }
 7521    activate_any_workspace_window(&mut cx).context("could not open zed")
 7522}
 7523
 7524fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7525    cx.update(|cx| {
 7526        if let Some(workspace_window) = cx
 7527            .active_window()
 7528            .and_then(|window| window.downcast::<Workspace>())
 7529        {
 7530            return Some(workspace_window);
 7531        }
 7532
 7533        for window in cx.windows() {
 7534            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7535                workspace_window
 7536                    .update(cx, |_, window, _| window.activate_window())
 7537                    .ok();
 7538                return Some(workspace_window);
 7539            }
 7540        }
 7541        None
 7542    })
 7543    .ok()
 7544    .flatten()
 7545}
 7546
 7547pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7548    cx.windows()
 7549        .into_iter()
 7550        .filter_map(|window| window.downcast::<Workspace>())
 7551        .filter(|workspace| {
 7552            workspace
 7553                .read(cx)
 7554                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7555        })
 7556        .collect()
 7557}
 7558
 7559#[derive(Default)]
 7560pub struct OpenOptions {
 7561    pub visible: Option<OpenVisible>,
 7562    pub focus: Option<bool>,
 7563    pub open_new_workspace: Option<bool>,
 7564    pub prefer_focused_window: bool,
 7565    pub replace_window: Option<WindowHandle<Workspace>>,
 7566    pub env: Option<HashMap<String, String>>,
 7567}
 7568
 7569#[allow(clippy::type_complexity)]
 7570pub fn open_paths(
 7571    abs_paths: &[PathBuf],
 7572    app_state: Arc<AppState>,
 7573    open_options: OpenOptions,
 7574    cx: &mut App,
 7575) -> Task<
 7576    anyhow::Result<(
 7577        WindowHandle<Workspace>,
 7578        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7579    )>,
 7580> {
 7581    let abs_paths = abs_paths.to_vec();
 7582    let mut existing = None;
 7583    let mut best_match = None;
 7584    let mut open_visible = OpenVisible::All;
 7585    #[cfg(target_os = "windows")]
 7586    let wsl_path = abs_paths
 7587        .iter()
 7588        .find_map(|p| util::paths::WslPath::from_path(p));
 7589
 7590    cx.spawn(async move |cx| {
 7591        if open_options.open_new_workspace != Some(true) {
 7592            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7593            let all_metadatas = futures::future::join_all(all_paths)
 7594                .await
 7595                .into_iter()
 7596                .filter_map(|result| result.ok().flatten())
 7597                .collect::<Vec<_>>();
 7598
 7599            cx.update(|cx| {
 7600                for window in local_workspace_windows(cx) {
 7601                    if let Ok(workspace) = window.read(cx) {
 7602                        let m = workspace.project.read(cx).visibility_for_paths(
 7603                            &abs_paths,
 7604                            &all_metadatas,
 7605                            open_options.open_new_workspace == None,
 7606                            cx,
 7607                        );
 7608                        if m > best_match {
 7609                            existing = Some(window);
 7610                            best_match = m;
 7611                        } else if best_match.is_none()
 7612                            && open_options.open_new_workspace == Some(false)
 7613                        {
 7614                            existing = Some(window)
 7615                        }
 7616                    }
 7617                }
 7618            })?;
 7619
 7620            if open_options.open_new_workspace.is_none()
 7621                && (existing.is_none() || open_options.prefer_focused_window)
 7622                && all_metadatas.iter().all(|file| !file.is_dir)
 7623            {
 7624                cx.update(|cx| {
 7625                    if let Some(window) = cx
 7626                        .active_window()
 7627                        .and_then(|window| window.downcast::<Workspace>())
 7628                        && let Ok(workspace) = window.read(cx)
 7629                    {
 7630                        let project = workspace.project().read(cx);
 7631                        if project.is_local() && !project.is_via_collab() {
 7632                            existing = Some(window);
 7633                            open_visible = OpenVisible::None;
 7634                            return;
 7635                        }
 7636                    }
 7637                    for window in local_workspace_windows(cx) {
 7638                        if let Ok(workspace) = window.read(cx) {
 7639                            let project = workspace.project().read(cx);
 7640                            if project.is_via_collab() {
 7641                                continue;
 7642                            }
 7643                            existing = Some(window);
 7644                            open_visible = OpenVisible::None;
 7645                            break;
 7646                        }
 7647                    }
 7648                })?;
 7649            }
 7650        }
 7651
 7652        let result = if let Some(existing) = existing {
 7653            let open_task = existing
 7654                .update(cx, |workspace, window, cx| {
 7655                    window.activate_window();
 7656                    workspace.open_paths(
 7657                        abs_paths,
 7658                        OpenOptions {
 7659                            visible: Some(open_visible),
 7660                            ..Default::default()
 7661                        },
 7662                        None,
 7663                        window,
 7664                        cx,
 7665                    )
 7666                })?
 7667                .await;
 7668
 7669            _ = existing.update(cx, |workspace, _, cx| {
 7670                for item in open_task.iter().flatten() {
 7671                    if let Err(e) = item {
 7672                        workspace.show_error(&e, cx);
 7673                    }
 7674                }
 7675            });
 7676
 7677            Ok((existing, open_task))
 7678        } else {
 7679            cx.update(move |cx| {
 7680                Workspace::new_local(
 7681                    abs_paths,
 7682                    app_state.clone(),
 7683                    open_options.replace_window,
 7684                    open_options.env,
 7685                    cx,
 7686                )
 7687            })?
 7688            .await
 7689        };
 7690
 7691        #[cfg(target_os = "windows")]
 7692        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 7693            && let Ok((workspace, _)) = &result
 7694        {
 7695            workspace
 7696                .update(cx, move |workspace, _window, cx| {
 7697                    struct OpenInWsl;
 7698                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 7699                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 7700                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 7701                        cx.new(move |cx| {
 7702                            MessageNotification::new(msg, cx)
 7703                                .primary_message("Open in WSL")
 7704                                .primary_icon(IconName::FolderOpen)
 7705                                .primary_on_click(move |window, cx| {
 7706                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 7707                                            distro: remote::WslConnectionOptions {
 7708                                                    distro_name: distro.clone(),
 7709                                                user: None,
 7710                                            },
 7711                                            paths: vec![path.clone().into()],
 7712                                        }), cx)
 7713                                })
 7714                        })
 7715                    });
 7716                })
 7717                .unwrap();
 7718        };
 7719        result
 7720    })
 7721}
 7722
 7723pub fn open_new(
 7724    open_options: OpenOptions,
 7725    app_state: Arc<AppState>,
 7726    cx: &mut App,
 7727    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7728) -> Task<anyhow::Result<()>> {
 7729    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7730    cx.spawn(async move |cx| {
 7731        let (workspace, opened_paths) = task.await?;
 7732        workspace.update(cx, |workspace, window, cx| {
 7733            if opened_paths.is_empty() {
 7734                init(workspace, window, cx)
 7735            }
 7736        })?;
 7737        Ok(())
 7738    })
 7739}
 7740
 7741pub fn create_and_open_local_file(
 7742    path: &'static Path,
 7743    window: &mut Window,
 7744    cx: &mut Context<Workspace>,
 7745    default_content: impl 'static + Send + FnOnce() -> Rope,
 7746) -> Task<Result<Box<dyn ItemHandle>>> {
 7747    cx.spawn_in(window, async move |workspace, cx| {
 7748        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7749        if !fs.is_file(path).await {
 7750            fs.create_file(path, Default::default()).await?;
 7751            fs.save(path, &default_content(), Default::default())
 7752                .await?;
 7753        }
 7754
 7755        let mut items = workspace
 7756            .update_in(cx, |workspace, window, cx| {
 7757                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7758                    workspace.open_paths(
 7759                        vec![path.to_path_buf()],
 7760                        OpenOptions {
 7761                            visible: Some(OpenVisible::None),
 7762                            ..Default::default()
 7763                        },
 7764                        None,
 7765                        window,
 7766                        cx,
 7767                    )
 7768                })
 7769            })?
 7770            .await?
 7771            .await;
 7772
 7773        let item = items.pop().flatten();
 7774        item.with_context(|| format!("path {path:?} is not a file"))?
 7775    })
 7776}
 7777
 7778pub fn open_remote_project_with_new_connection(
 7779    window: WindowHandle<Workspace>,
 7780    remote_connection: Arc<dyn RemoteConnection>,
 7781    cancel_rx: oneshot::Receiver<()>,
 7782    delegate: Arc<dyn RemoteClientDelegate>,
 7783    app_state: Arc<AppState>,
 7784    paths: Vec<PathBuf>,
 7785    cx: &mut App,
 7786) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7787    cx.spawn(async move |cx| {
 7788        let (workspace_id, serialized_workspace) =
 7789            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 7790                .await?;
 7791
 7792        let session = match cx
 7793            .update(|cx| {
 7794                remote::RemoteClient::new(
 7795                    ConnectionIdentifier::Workspace(workspace_id.0),
 7796                    remote_connection,
 7797                    cancel_rx,
 7798                    delegate,
 7799                    cx,
 7800                )
 7801            })?
 7802            .await?
 7803        {
 7804            Some(result) => result,
 7805            None => return Ok(Vec::new()),
 7806        };
 7807
 7808        let project = cx.update(|cx| {
 7809            project::Project::remote(
 7810                session,
 7811                app_state.client.clone(),
 7812                app_state.node_runtime.clone(),
 7813                app_state.user_store.clone(),
 7814                app_state.languages.clone(),
 7815                app_state.fs.clone(),
 7816                cx,
 7817            )
 7818        })?;
 7819
 7820        open_remote_project_inner(
 7821            project,
 7822            paths,
 7823            workspace_id,
 7824            serialized_workspace,
 7825            app_state,
 7826            window,
 7827            cx,
 7828        )
 7829        .await
 7830    })
 7831}
 7832
 7833pub fn open_remote_project_with_existing_connection(
 7834    connection_options: RemoteConnectionOptions,
 7835    project: Entity<Project>,
 7836    paths: Vec<PathBuf>,
 7837    app_state: Arc<AppState>,
 7838    window: WindowHandle<Workspace>,
 7839    cx: &mut AsyncApp,
 7840) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7841    cx.spawn(async move |cx| {
 7842        let (workspace_id, serialized_workspace) =
 7843            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7844
 7845        open_remote_project_inner(
 7846            project,
 7847            paths,
 7848            workspace_id,
 7849            serialized_workspace,
 7850            app_state,
 7851            window,
 7852            cx,
 7853        )
 7854        .await
 7855    })
 7856}
 7857
 7858async fn open_remote_project_inner(
 7859    project: Entity<Project>,
 7860    paths: Vec<PathBuf>,
 7861    workspace_id: WorkspaceId,
 7862    serialized_workspace: Option<SerializedWorkspace>,
 7863    app_state: Arc<AppState>,
 7864    window: WindowHandle<Workspace>,
 7865    cx: &mut AsyncApp,
 7866) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 7867    let toolchains = DB.toolchains(workspace_id).await?;
 7868    for (toolchain, worktree_id, path) in toolchains {
 7869        project
 7870            .update(cx, |this, cx| {
 7871                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7872            })?
 7873            .await;
 7874    }
 7875    let mut project_paths_to_open = vec![];
 7876    let mut project_path_errors = vec![];
 7877
 7878    for path in paths {
 7879        let result = cx
 7880            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7881            .await;
 7882        match result {
 7883            Ok((_, project_path)) => {
 7884                project_paths_to_open.push((path.clone(), Some(project_path)));
 7885            }
 7886            Err(error) => {
 7887                project_path_errors.push(error);
 7888            }
 7889        };
 7890    }
 7891
 7892    if project_paths_to_open.is_empty() {
 7893        return Err(project_path_errors.pop().context("no paths given")?);
 7894    }
 7895
 7896    if let Some(detach_session_task) = window
 7897        .update(cx, |_workspace, window, cx| {
 7898            cx.spawn_in(window, async move |this, cx| {
 7899                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7900            })
 7901        })
 7902        .ok()
 7903    {
 7904        detach_session_task.await.ok();
 7905    }
 7906
 7907    cx.update_window(window.into(), |_, window, cx| {
 7908        window.replace_root(cx, |window, cx| {
 7909            telemetry::event!("SSH Project Opened");
 7910
 7911            let mut workspace =
 7912                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7913            workspace.update_history(cx);
 7914
 7915            if let Some(ref serialized) = serialized_workspace {
 7916                workspace.centered_layout = serialized.centered_layout;
 7917            }
 7918
 7919            workspace
 7920        });
 7921    })?;
 7922
 7923    let items = window
 7924        .update(cx, |_, window, cx| {
 7925            window.activate_window();
 7926            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7927        })?
 7928        .await?;
 7929
 7930    window.update(cx, |workspace, _, cx| {
 7931        for error in project_path_errors {
 7932            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7933                if let Some(path) = error.error_tag("path") {
 7934                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7935                }
 7936            } else {
 7937                workspace.show_error(&error, cx)
 7938            }
 7939        }
 7940    })?;
 7941
 7942    Ok(items.into_iter().map(|item| item?.ok()).collect())
 7943}
 7944
 7945fn deserialize_remote_project(
 7946    connection_options: RemoteConnectionOptions,
 7947    paths: Vec<PathBuf>,
 7948    cx: &AsyncApp,
 7949) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 7950    cx.background_spawn(async move {
 7951        let remote_connection_id = persistence::DB
 7952            .get_or_create_remote_connection(connection_options)
 7953            .await?;
 7954
 7955        let serialized_workspace =
 7956            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 7957
 7958        let workspace_id = if let Some(workspace_id) =
 7959            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7960        {
 7961            workspace_id
 7962        } else {
 7963            persistence::DB.next_id().await?
 7964        };
 7965
 7966        Ok((workspace_id, serialized_workspace))
 7967    })
 7968}
 7969
 7970pub fn join_in_room_project(
 7971    project_id: u64,
 7972    follow_user_id: u64,
 7973    app_state: Arc<AppState>,
 7974    cx: &mut App,
 7975) -> Task<Result<()>> {
 7976    let windows = cx.windows();
 7977    cx.spawn(async move |cx| {
 7978        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7979            window_handle
 7980                .downcast::<Workspace>()
 7981                .and_then(|window_handle| {
 7982                    window_handle
 7983                        .update(cx, |workspace, _window, cx| {
 7984                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7985                                Some(window_handle)
 7986                            } else {
 7987                                None
 7988                            }
 7989                        })
 7990                        .unwrap_or(None)
 7991                })
 7992        });
 7993
 7994        let workspace = if let Some(existing_workspace) = existing_workspace {
 7995            existing_workspace
 7996        } else {
 7997            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7998            let room = active_call
 7999                .read_with(cx, |call, _| call.room().cloned())?
 8000                .context("not in a call")?;
 8001            let project = room
 8002                .update(cx, |room, cx| {
 8003                    room.join_project(
 8004                        project_id,
 8005                        app_state.languages.clone(),
 8006                        app_state.fs.clone(),
 8007                        cx,
 8008                    )
 8009                })?
 8010                .await?;
 8011
 8012            let window_bounds_override = window_bounds_env_override();
 8013            cx.update(|cx| {
 8014                let mut options = (app_state.build_window_options)(None, cx);
 8015                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8016                cx.open_window(options, |window, cx| {
 8017                    cx.new(|cx| {
 8018                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8019                    })
 8020                })
 8021            })??
 8022        };
 8023
 8024        workspace.update(cx, |workspace, window, cx| {
 8025            cx.activate(true);
 8026            window.activate_window();
 8027
 8028            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8029                let follow_peer_id = room
 8030                    .read(cx)
 8031                    .remote_participants()
 8032                    .iter()
 8033                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8034                    .map(|(_, p)| p.peer_id)
 8035                    .or_else(|| {
 8036                        // If we couldn't follow the given user, follow the host instead.
 8037                        let collaborator = workspace
 8038                            .project()
 8039                            .read(cx)
 8040                            .collaborators()
 8041                            .values()
 8042                            .find(|collaborator| collaborator.is_host)?;
 8043                        Some(collaborator.peer_id)
 8044                    });
 8045
 8046                if let Some(follow_peer_id) = follow_peer_id {
 8047                    workspace.follow(follow_peer_id, window, cx);
 8048                }
 8049            }
 8050        })?;
 8051
 8052        anyhow::Ok(())
 8053    })
 8054}
 8055
 8056pub fn reload(cx: &mut App) {
 8057    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8058    let mut workspace_windows = cx
 8059        .windows()
 8060        .into_iter()
 8061        .filter_map(|window| window.downcast::<Workspace>())
 8062        .collect::<Vec<_>>();
 8063
 8064    // If multiple windows have unsaved changes, and need a save prompt,
 8065    // prompt in the active window before switching to a different window.
 8066    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8067
 8068    let mut prompt = None;
 8069    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8070        prompt = window
 8071            .update(cx, |_, window, cx| {
 8072                window.prompt(
 8073                    PromptLevel::Info,
 8074                    "Are you sure you want to restart?",
 8075                    None,
 8076                    &["Restart", "Cancel"],
 8077                    cx,
 8078                )
 8079            })
 8080            .ok();
 8081    }
 8082
 8083    cx.spawn(async move |cx| {
 8084        if let Some(prompt) = prompt {
 8085            let answer = prompt.await?;
 8086            if answer != 0 {
 8087                return Ok(());
 8088            }
 8089        }
 8090
 8091        // If the user cancels any save prompt, then keep the app open.
 8092        for window in workspace_windows {
 8093            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8094                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8095            }) && !should_close.await?
 8096            {
 8097                return Ok(());
 8098            }
 8099        }
 8100        cx.update(|cx| cx.restart())
 8101    })
 8102    .detach_and_log_err(cx);
 8103}
 8104
 8105fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8106    let mut parts = value.split(',');
 8107    let x: usize = parts.next()?.parse().ok()?;
 8108    let y: usize = parts.next()?.parse().ok()?;
 8109    Some(point(px(x as f32), px(y as f32)))
 8110}
 8111
 8112fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8113    let mut parts = value.split(',');
 8114    let width: usize = parts.next()?.parse().ok()?;
 8115    let height: usize = parts.next()?.parse().ok()?;
 8116    Some(size(px(width as f32), px(height as f32)))
 8117}
 8118
 8119/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8120pub fn client_side_decorations(
 8121    element: impl IntoElement,
 8122    window: &mut Window,
 8123    cx: &mut App,
 8124) -> Stateful<Div> {
 8125    const BORDER_SIZE: Pixels = px(1.0);
 8126    let decorations = window.window_decorations();
 8127
 8128    match decorations {
 8129        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8130        Decorations::Server => window.set_client_inset(px(0.0)),
 8131    }
 8132
 8133    struct GlobalResizeEdge(ResizeEdge);
 8134    impl Global for GlobalResizeEdge {}
 8135
 8136    div()
 8137        .id("window-backdrop")
 8138        .bg(transparent_black())
 8139        .map(|div| match decorations {
 8140            Decorations::Server => div,
 8141            Decorations::Client { tiling, .. } => div
 8142                .when(!(tiling.top || tiling.right), |div| {
 8143                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8144                })
 8145                .when(!(tiling.top || tiling.left), |div| {
 8146                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8147                })
 8148                .when(!(tiling.bottom || tiling.right), |div| {
 8149                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8150                })
 8151                .when(!(tiling.bottom || tiling.left), |div| {
 8152                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8153                })
 8154                .when(!tiling.top, |div| {
 8155                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8156                })
 8157                .when(!tiling.bottom, |div| {
 8158                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8159                })
 8160                .when(!tiling.left, |div| {
 8161                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8162                })
 8163                .when(!tiling.right, |div| {
 8164                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8165                })
 8166                .on_mouse_move(move |e, window, cx| {
 8167                    let size = window.window_bounds().get_bounds().size;
 8168                    let pos = e.position;
 8169
 8170                    let new_edge =
 8171                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8172
 8173                    let edge = cx.try_global::<GlobalResizeEdge>();
 8174                    if new_edge != edge.map(|edge| edge.0) {
 8175                        window
 8176                            .window_handle()
 8177                            .update(cx, |workspace, _, cx| {
 8178                                cx.notify(workspace.entity_id());
 8179                            })
 8180                            .ok();
 8181                    }
 8182                })
 8183                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8184                    let size = window.window_bounds().get_bounds().size;
 8185                    let pos = e.position;
 8186
 8187                    let edge = match resize_edge(
 8188                        pos,
 8189                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8190                        size,
 8191                        tiling,
 8192                    ) {
 8193                        Some(value) => value,
 8194                        None => return,
 8195                    };
 8196
 8197                    window.start_window_resize(edge);
 8198                }),
 8199        })
 8200        .size_full()
 8201        .child(
 8202            div()
 8203                .cursor(CursorStyle::Arrow)
 8204                .map(|div| match decorations {
 8205                    Decorations::Server => div,
 8206                    Decorations::Client { tiling } => div
 8207                        .border_color(cx.theme().colors().border)
 8208                        .when(!(tiling.top || tiling.right), |div| {
 8209                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8210                        })
 8211                        .when(!(tiling.top || tiling.left), |div| {
 8212                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8213                        })
 8214                        .when(!(tiling.bottom || tiling.right), |div| {
 8215                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8216                        })
 8217                        .when(!(tiling.bottom || tiling.left), |div| {
 8218                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8219                        })
 8220                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8221                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8222                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8223                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8224                        .when(!tiling.is_tiled(), |div| {
 8225                            div.shadow(vec![gpui::BoxShadow {
 8226                                color: Hsla {
 8227                                    h: 0.,
 8228                                    s: 0.,
 8229                                    l: 0.,
 8230                                    a: 0.4,
 8231                                },
 8232                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8233                                spread_radius: px(0.),
 8234                                offset: point(px(0.0), px(0.0)),
 8235                            }])
 8236                        }),
 8237                })
 8238                .on_mouse_move(|_e, _, cx| {
 8239                    cx.stop_propagation();
 8240                })
 8241                .size_full()
 8242                .child(element),
 8243        )
 8244        .map(|div| match decorations {
 8245            Decorations::Server => div,
 8246            Decorations::Client { tiling, .. } => div.child(
 8247                canvas(
 8248                    |_bounds, window, _| {
 8249                        window.insert_hitbox(
 8250                            Bounds::new(
 8251                                point(px(0.0), px(0.0)),
 8252                                window.window_bounds().get_bounds().size,
 8253                            ),
 8254                            HitboxBehavior::Normal,
 8255                        )
 8256                    },
 8257                    move |_bounds, hitbox, window, cx| {
 8258                        let mouse = window.mouse_position();
 8259                        let size = window.window_bounds().get_bounds().size;
 8260                        let Some(edge) =
 8261                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8262                        else {
 8263                            return;
 8264                        };
 8265                        cx.set_global(GlobalResizeEdge(edge));
 8266                        window.set_cursor_style(
 8267                            match edge {
 8268                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8269                                ResizeEdge::Left | ResizeEdge::Right => {
 8270                                    CursorStyle::ResizeLeftRight
 8271                                }
 8272                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8273                                    CursorStyle::ResizeUpLeftDownRight
 8274                                }
 8275                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8276                                    CursorStyle::ResizeUpRightDownLeft
 8277                                }
 8278                            },
 8279                            &hitbox,
 8280                        );
 8281                    },
 8282                )
 8283                .size_full()
 8284                .absolute(),
 8285            ),
 8286        })
 8287}
 8288
 8289fn resize_edge(
 8290    pos: Point<Pixels>,
 8291    shadow_size: Pixels,
 8292    window_size: Size<Pixels>,
 8293    tiling: Tiling,
 8294) -> Option<ResizeEdge> {
 8295    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8296    if bounds.contains(&pos) {
 8297        return None;
 8298    }
 8299
 8300    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8301    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8302    if !tiling.top && top_left_bounds.contains(&pos) {
 8303        return Some(ResizeEdge::TopLeft);
 8304    }
 8305
 8306    let top_right_bounds = Bounds::new(
 8307        Point::new(window_size.width - corner_size.width, px(0.)),
 8308        corner_size,
 8309    );
 8310    if !tiling.top && top_right_bounds.contains(&pos) {
 8311        return Some(ResizeEdge::TopRight);
 8312    }
 8313
 8314    let bottom_left_bounds = Bounds::new(
 8315        Point::new(px(0.), window_size.height - corner_size.height),
 8316        corner_size,
 8317    );
 8318    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8319        return Some(ResizeEdge::BottomLeft);
 8320    }
 8321
 8322    let bottom_right_bounds = Bounds::new(
 8323        Point::new(
 8324            window_size.width - corner_size.width,
 8325            window_size.height - corner_size.height,
 8326        ),
 8327        corner_size,
 8328    );
 8329    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8330        return Some(ResizeEdge::BottomRight);
 8331    }
 8332
 8333    if !tiling.top && pos.y < shadow_size {
 8334        Some(ResizeEdge::Top)
 8335    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8336        Some(ResizeEdge::Bottom)
 8337    } else if !tiling.left && pos.x < shadow_size {
 8338        Some(ResizeEdge::Left)
 8339    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8340        Some(ResizeEdge::Right)
 8341    } else {
 8342        None
 8343    }
 8344}
 8345
 8346fn join_pane_into_active(
 8347    active_pane: &Entity<Pane>,
 8348    pane: &Entity<Pane>,
 8349    window: &mut Window,
 8350    cx: &mut App,
 8351) {
 8352    if pane == active_pane {
 8353    } else if pane.read(cx).items_len() == 0 {
 8354        pane.update(cx, |_, cx| {
 8355            cx.emit(pane::Event::Remove {
 8356                focus_on_pane: None,
 8357            });
 8358        })
 8359    } else {
 8360        move_all_items(pane, active_pane, window, cx);
 8361    }
 8362}
 8363
 8364fn move_all_items(
 8365    from_pane: &Entity<Pane>,
 8366    to_pane: &Entity<Pane>,
 8367    window: &mut Window,
 8368    cx: &mut App,
 8369) {
 8370    let destination_is_different = from_pane != to_pane;
 8371    let mut moved_items = 0;
 8372    for (item_ix, item_handle) in from_pane
 8373        .read(cx)
 8374        .items()
 8375        .enumerate()
 8376        .map(|(ix, item)| (ix, item.clone()))
 8377        .collect::<Vec<_>>()
 8378    {
 8379        let ix = item_ix - moved_items;
 8380        if destination_is_different {
 8381            // Close item from previous pane
 8382            from_pane.update(cx, |source, cx| {
 8383                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8384            });
 8385            moved_items += 1;
 8386        }
 8387
 8388        // This automatically removes duplicate items in the pane
 8389        to_pane.update(cx, |destination, cx| {
 8390            destination.add_item(item_handle, true, true, None, window, cx);
 8391            window.focus(&destination.focus_handle(cx))
 8392        });
 8393    }
 8394}
 8395
 8396pub fn move_item(
 8397    source: &Entity<Pane>,
 8398    destination: &Entity<Pane>,
 8399    item_id_to_move: EntityId,
 8400    destination_index: usize,
 8401    activate: bool,
 8402    window: &mut Window,
 8403    cx: &mut App,
 8404) {
 8405    let Some((item_ix, item_handle)) = source
 8406        .read(cx)
 8407        .items()
 8408        .enumerate()
 8409        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8410        .map(|(ix, item)| (ix, item.clone()))
 8411    else {
 8412        // Tab was closed during drag
 8413        return;
 8414    };
 8415
 8416    if source != destination {
 8417        // Close item from previous pane
 8418        source.update(cx, |source, cx| {
 8419            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8420        });
 8421    }
 8422
 8423    // This automatically removes duplicate items in the pane
 8424    destination.update(cx, |destination, cx| {
 8425        destination.add_item_inner(
 8426            item_handle,
 8427            activate,
 8428            activate,
 8429            activate,
 8430            Some(destination_index),
 8431            window,
 8432            cx,
 8433        );
 8434        if activate {
 8435            window.focus(&destination.focus_handle(cx))
 8436        }
 8437    });
 8438}
 8439
 8440pub fn move_active_item(
 8441    source: &Entity<Pane>,
 8442    destination: &Entity<Pane>,
 8443    focus_destination: bool,
 8444    close_if_empty: bool,
 8445    window: &mut Window,
 8446    cx: &mut App,
 8447) {
 8448    if source == destination {
 8449        return;
 8450    }
 8451    let Some(active_item) = source.read(cx).active_item() else {
 8452        return;
 8453    };
 8454    source.update(cx, |source_pane, cx| {
 8455        let item_id = active_item.item_id();
 8456        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8457        destination.update(cx, |target_pane, cx| {
 8458            target_pane.add_item(
 8459                active_item,
 8460                focus_destination,
 8461                focus_destination,
 8462                Some(target_pane.items_len()),
 8463                window,
 8464                cx,
 8465            );
 8466        });
 8467    });
 8468}
 8469
 8470pub fn clone_active_item(
 8471    workspace_id: Option<WorkspaceId>,
 8472    source: &Entity<Pane>,
 8473    destination: &Entity<Pane>,
 8474    focus_destination: bool,
 8475    window: &mut Window,
 8476    cx: &mut App,
 8477) {
 8478    if source == destination {
 8479        return;
 8480    }
 8481    let Some(active_item) = source.read(cx).active_item() else {
 8482        return;
 8483    };
 8484    if !active_item.can_split(cx) {
 8485        return;
 8486    }
 8487    let destination = destination.downgrade();
 8488    let task = active_item.clone_on_split(workspace_id, window, cx);
 8489    window
 8490        .spawn(cx, async move |cx| {
 8491            let Some(clone) = task.await else {
 8492                return;
 8493            };
 8494            destination
 8495                .update_in(cx, |target_pane, window, cx| {
 8496                    target_pane.add_item(
 8497                        clone,
 8498                        focus_destination,
 8499                        focus_destination,
 8500                        Some(target_pane.items_len()),
 8501                        window,
 8502                        cx,
 8503                    );
 8504                })
 8505                .log_err();
 8506        })
 8507        .detach();
 8508}
 8509
 8510#[derive(Debug)]
 8511pub struct WorkspacePosition {
 8512    pub window_bounds: Option<WindowBounds>,
 8513    pub display: Option<Uuid>,
 8514    pub centered_layout: bool,
 8515}
 8516
 8517pub fn remote_workspace_position_from_db(
 8518    connection_options: RemoteConnectionOptions,
 8519    paths_to_open: &[PathBuf],
 8520    cx: &App,
 8521) -> Task<Result<WorkspacePosition>> {
 8522    let paths = paths_to_open.to_vec();
 8523
 8524    cx.background_spawn(async move {
 8525        let remote_connection_id = persistence::DB
 8526            .get_or_create_remote_connection(connection_options)
 8527            .await
 8528            .context("fetching serialized ssh project")?;
 8529        let serialized_workspace =
 8530            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8531
 8532        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8533            (Some(WindowBounds::Windowed(bounds)), None)
 8534        } else {
 8535            let restorable_bounds = serialized_workspace
 8536                .as_ref()
 8537                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8538                .or_else(|| {
 8539                    let (display, window_bounds) = DB.last_window().log_err()?;
 8540                    Some((display?, window_bounds?))
 8541                });
 8542
 8543            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8544                (Some(serialized_status.0), Some(serialized_display))
 8545            } else {
 8546                (None, None)
 8547            }
 8548        };
 8549
 8550        let centered_layout = serialized_workspace
 8551            .as_ref()
 8552            .map(|w| w.centered_layout)
 8553            .unwrap_or(false);
 8554
 8555        Ok(WorkspacePosition {
 8556            window_bounds,
 8557            display,
 8558            centered_layout,
 8559        })
 8560    })
 8561}
 8562
 8563pub fn with_active_or_new_workspace(
 8564    cx: &mut App,
 8565    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8566) {
 8567    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8568        Some(workspace) => {
 8569            cx.defer(move |cx| {
 8570                workspace
 8571                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8572                    .log_err();
 8573            });
 8574        }
 8575        None => {
 8576            let app_state = AppState::global(cx);
 8577            if let Some(app_state) = app_state.upgrade() {
 8578                open_new(
 8579                    OpenOptions::default(),
 8580                    app_state,
 8581                    cx,
 8582                    move |workspace, window, cx| f(workspace, window, cx),
 8583                )
 8584                .detach_and_log_err(cx);
 8585            }
 8586        }
 8587    }
 8588}
 8589
 8590#[cfg(test)]
 8591mod tests {
 8592    use std::{cell::RefCell, rc::Rc};
 8593
 8594    use super::*;
 8595    use crate::{
 8596        dock::{PanelEvent, test::TestPanel},
 8597        item::{
 8598            ItemBufferKind, ItemEvent,
 8599            test::{TestItem, TestProjectItem},
 8600        },
 8601    };
 8602    use fs::FakeFs;
 8603    use gpui::{
 8604        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8605        UpdateGlobal, VisualTestContext, px,
 8606    };
 8607    use project::{Project, ProjectEntryId};
 8608    use serde_json::json;
 8609    use settings::SettingsStore;
 8610    use util::rel_path::rel_path;
 8611
 8612    #[gpui::test]
 8613    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8614        init_test(cx);
 8615
 8616        let fs = FakeFs::new(cx.executor());
 8617        let project = Project::test(fs, [], cx).await;
 8618        let (workspace, cx) =
 8619            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8620
 8621        // Adding an item with no ambiguity renders the tab without detail.
 8622        let item1 = cx.new(|cx| {
 8623            let mut item = TestItem::new(cx);
 8624            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8625            item
 8626        });
 8627        workspace.update_in(cx, |workspace, window, cx| {
 8628            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8629        });
 8630        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8631
 8632        // Adding an item that creates ambiguity increases the level of detail on
 8633        // both tabs.
 8634        let item2 = cx.new_window_entity(|_window, cx| {
 8635            let mut item = TestItem::new(cx);
 8636            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8637            item
 8638        });
 8639        workspace.update_in(cx, |workspace, window, cx| {
 8640            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8641        });
 8642        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8643        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8644
 8645        // Adding an item that creates ambiguity increases the level of detail only
 8646        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8647        // we stop at the highest detail available.
 8648        let item3 = cx.new(|cx| {
 8649            let mut item = TestItem::new(cx);
 8650            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8651            item
 8652        });
 8653        workspace.update_in(cx, |workspace, window, cx| {
 8654            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8655        });
 8656        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8657        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8658        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8659    }
 8660
 8661    #[gpui::test]
 8662    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8663        init_test(cx);
 8664
 8665        let fs = FakeFs::new(cx.executor());
 8666        fs.insert_tree(
 8667            "/root1",
 8668            json!({
 8669                "one.txt": "",
 8670                "two.txt": "",
 8671            }),
 8672        )
 8673        .await;
 8674        fs.insert_tree(
 8675            "/root2",
 8676            json!({
 8677                "three.txt": "",
 8678            }),
 8679        )
 8680        .await;
 8681
 8682        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8683        let (workspace, cx) =
 8684            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8685        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8686        let worktree_id = project.update(cx, |project, cx| {
 8687            project.worktrees(cx).next().unwrap().read(cx).id()
 8688        });
 8689
 8690        let item1 = cx.new(|cx| {
 8691            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8692        });
 8693        let item2 = cx.new(|cx| {
 8694            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8695        });
 8696
 8697        // Add an item to an empty pane
 8698        workspace.update_in(cx, |workspace, window, cx| {
 8699            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8700        });
 8701        project.update(cx, |project, cx| {
 8702            assert_eq!(
 8703                project.active_entry(),
 8704                project
 8705                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8706                    .map(|e| e.id)
 8707            );
 8708        });
 8709        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8710
 8711        // Add a second item to a non-empty pane
 8712        workspace.update_in(cx, |workspace, window, cx| {
 8713            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8714        });
 8715        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8716        project.update(cx, |project, cx| {
 8717            assert_eq!(
 8718                project.active_entry(),
 8719                project
 8720                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 8721                    .map(|e| e.id)
 8722            );
 8723        });
 8724
 8725        // Close the active item
 8726        pane.update_in(cx, |pane, window, cx| {
 8727            pane.close_active_item(&Default::default(), window, cx)
 8728        })
 8729        .await
 8730        .unwrap();
 8731        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8732        project.update(cx, |project, cx| {
 8733            assert_eq!(
 8734                project.active_entry(),
 8735                project
 8736                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8737                    .map(|e| e.id)
 8738            );
 8739        });
 8740
 8741        // Add a project folder
 8742        project
 8743            .update(cx, |project, cx| {
 8744                project.find_or_create_worktree("root2", true, cx)
 8745            })
 8746            .await
 8747            .unwrap();
 8748        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8749
 8750        // Remove a project folder
 8751        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8752        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8753    }
 8754
 8755    #[gpui::test]
 8756    async fn test_close_window(cx: &mut TestAppContext) {
 8757        init_test(cx);
 8758
 8759        let fs = FakeFs::new(cx.executor());
 8760        fs.insert_tree("/root", json!({ "one": "" })).await;
 8761
 8762        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8763        let (workspace, cx) =
 8764            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8765
 8766        // When there are no dirty items, there's nothing to do.
 8767        let item1 = cx.new(TestItem::new);
 8768        workspace.update_in(cx, |w, window, cx| {
 8769            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8770        });
 8771        let task = workspace.update_in(cx, |w, window, cx| {
 8772            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8773        });
 8774        assert!(task.await.unwrap());
 8775
 8776        // When there are dirty untitled items, prompt to save each one. If the user
 8777        // cancels any prompt, then abort.
 8778        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8779        let item3 = cx.new(|cx| {
 8780            TestItem::new(cx)
 8781                .with_dirty(true)
 8782                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8783        });
 8784        workspace.update_in(cx, |w, window, cx| {
 8785            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8786            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8787        });
 8788        let task = workspace.update_in(cx, |w, window, cx| {
 8789            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8790        });
 8791        cx.executor().run_until_parked();
 8792        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8793        cx.executor().run_until_parked();
 8794        assert!(!cx.has_pending_prompt());
 8795        assert!(!task.await.unwrap());
 8796    }
 8797
 8798    #[gpui::test]
 8799    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8800        init_test(cx);
 8801
 8802        // Register TestItem as a serializable item
 8803        cx.update(|cx| {
 8804            register_serializable_item::<TestItem>(cx);
 8805        });
 8806
 8807        let fs = FakeFs::new(cx.executor());
 8808        fs.insert_tree("/root", json!({ "one": "" })).await;
 8809
 8810        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8811        let (workspace, cx) =
 8812            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8813
 8814        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8815        let item1 = cx.new(|cx| {
 8816            TestItem::new(cx)
 8817                .with_dirty(true)
 8818                .with_serialize(|| Some(Task::ready(Ok(()))))
 8819        });
 8820        let item2 = cx.new(|cx| {
 8821            TestItem::new(cx)
 8822                .with_dirty(true)
 8823                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8824                .with_serialize(|| Some(Task::ready(Ok(()))))
 8825        });
 8826        workspace.update_in(cx, |w, window, cx| {
 8827            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8828            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8829        });
 8830        let task = workspace.update_in(cx, |w, window, cx| {
 8831            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8832        });
 8833        assert!(task.await.unwrap());
 8834    }
 8835
 8836    #[gpui::test]
 8837    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8838        init_test(cx);
 8839
 8840        let fs = FakeFs::new(cx.executor());
 8841
 8842        let project = Project::test(fs, None, cx).await;
 8843        let (workspace, cx) =
 8844            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8845
 8846        let item1 = cx.new(|cx| {
 8847            TestItem::new(cx)
 8848                .with_dirty(true)
 8849                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8850        });
 8851        let item2 = cx.new(|cx| {
 8852            TestItem::new(cx)
 8853                .with_dirty(true)
 8854                .with_conflict(true)
 8855                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8856        });
 8857        let item3 = cx.new(|cx| {
 8858            TestItem::new(cx)
 8859                .with_dirty(true)
 8860                .with_conflict(true)
 8861                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8862        });
 8863        let item4 = cx.new(|cx| {
 8864            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8865                let project_item = TestProjectItem::new_untitled(cx);
 8866                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8867                project_item
 8868            }])
 8869        });
 8870        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8871            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8872            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8873            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8874            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8875            workspace.active_pane().clone()
 8876        });
 8877
 8878        let close_items = pane.update_in(cx, |pane, window, cx| {
 8879            pane.activate_item(1, true, true, window, cx);
 8880            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8881            let item1_id = item1.item_id();
 8882            let item3_id = item3.item_id();
 8883            let item4_id = item4.item_id();
 8884            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8885                [item1_id, item3_id, item4_id].contains(&id)
 8886            })
 8887        });
 8888        cx.executor().run_until_parked();
 8889
 8890        assert!(cx.has_pending_prompt());
 8891        cx.simulate_prompt_answer("Save all");
 8892
 8893        cx.executor().run_until_parked();
 8894
 8895        // Item 1 is saved. There's a prompt to save item 3.
 8896        pane.update(cx, |pane, cx| {
 8897            assert_eq!(item1.read(cx).save_count, 1);
 8898            assert_eq!(item1.read(cx).save_as_count, 0);
 8899            assert_eq!(item1.read(cx).reload_count, 0);
 8900            assert_eq!(pane.items_len(), 3);
 8901            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8902        });
 8903        assert!(cx.has_pending_prompt());
 8904
 8905        // Cancel saving item 3.
 8906        cx.simulate_prompt_answer("Discard");
 8907        cx.executor().run_until_parked();
 8908
 8909        // Item 3 is reloaded. There's a prompt to save item 4.
 8910        pane.update(cx, |pane, cx| {
 8911            assert_eq!(item3.read(cx).save_count, 0);
 8912            assert_eq!(item3.read(cx).save_as_count, 0);
 8913            assert_eq!(item3.read(cx).reload_count, 1);
 8914            assert_eq!(pane.items_len(), 2);
 8915            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8916        });
 8917
 8918        // There's a prompt for a path for item 4.
 8919        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8920        close_items.await.unwrap();
 8921
 8922        // The requested items are closed.
 8923        pane.update(cx, |pane, cx| {
 8924            assert_eq!(item4.read(cx).save_count, 0);
 8925            assert_eq!(item4.read(cx).save_as_count, 1);
 8926            assert_eq!(item4.read(cx).reload_count, 0);
 8927            assert_eq!(pane.items_len(), 1);
 8928            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8929        });
 8930    }
 8931
 8932    #[gpui::test]
 8933    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8934        init_test(cx);
 8935
 8936        let fs = FakeFs::new(cx.executor());
 8937        let project = Project::test(fs, [], cx).await;
 8938        let (workspace, cx) =
 8939            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8940
 8941        // Create several workspace items with single project entries, and two
 8942        // workspace items with multiple project entries.
 8943        let single_entry_items = (0..=4)
 8944            .map(|project_entry_id| {
 8945                cx.new(|cx| {
 8946                    TestItem::new(cx)
 8947                        .with_dirty(true)
 8948                        .with_project_items(&[dirty_project_item(
 8949                            project_entry_id,
 8950                            &format!("{project_entry_id}.txt"),
 8951                            cx,
 8952                        )])
 8953                })
 8954            })
 8955            .collect::<Vec<_>>();
 8956        let item_2_3 = cx.new(|cx| {
 8957            TestItem::new(cx)
 8958                .with_dirty(true)
 8959                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8960                .with_project_items(&[
 8961                    single_entry_items[2].read(cx).project_items[0].clone(),
 8962                    single_entry_items[3].read(cx).project_items[0].clone(),
 8963                ])
 8964        });
 8965        let item_3_4 = cx.new(|cx| {
 8966            TestItem::new(cx)
 8967                .with_dirty(true)
 8968                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8969                .with_project_items(&[
 8970                    single_entry_items[3].read(cx).project_items[0].clone(),
 8971                    single_entry_items[4].read(cx).project_items[0].clone(),
 8972                ])
 8973        });
 8974
 8975        // Create two panes that contain the following project entries:
 8976        //   left pane:
 8977        //     multi-entry items:   (2, 3)
 8978        //     single-entry items:  0, 2, 3, 4
 8979        //   right pane:
 8980        //     single-entry items:  4, 1
 8981        //     multi-entry items:   (3, 4)
 8982        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8983            let left_pane = workspace.active_pane().clone();
 8984            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8985            workspace.add_item_to_active_pane(
 8986                single_entry_items[0].boxed_clone(),
 8987                None,
 8988                true,
 8989                window,
 8990                cx,
 8991            );
 8992            workspace.add_item_to_active_pane(
 8993                single_entry_items[2].boxed_clone(),
 8994                None,
 8995                true,
 8996                window,
 8997                cx,
 8998            );
 8999            workspace.add_item_to_active_pane(
 9000                single_entry_items[3].boxed_clone(),
 9001                None,
 9002                true,
 9003                window,
 9004                cx,
 9005            );
 9006            workspace.add_item_to_active_pane(
 9007                single_entry_items[4].boxed_clone(),
 9008                None,
 9009                true,
 9010                window,
 9011                cx,
 9012            );
 9013
 9014            let right_pane =
 9015                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9016
 9017            let boxed_clone = single_entry_items[1].boxed_clone();
 9018            let right_pane = window.spawn(cx, async move |cx| {
 9019                right_pane.await.inspect(|right_pane| {
 9020                    right_pane
 9021                        .update_in(cx, |pane, window, cx| {
 9022                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9023                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9024                        })
 9025                        .unwrap();
 9026                })
 9027            });
 9028
 9029            (left_pane, right_pane)
 9030        });
 9031        let right_pane = right_pane.await.unwrap();
 9032        cx.focus(&right_pane);
 9033
 9034        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9035            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9036                .unwrap()
 9037        });
 9038        cx.executor().run_until_parked();
 9039
 9040        let msg = cx.pending_prompt().unwrap().0;
 9041        assert!(msg.contains("1.txt"));
 9042        assert!(!msg.contains("2.txt"));
 9043        assert!(!msg.contains("3.txt"));
 9044        assert!(!msg.contains("4.txt"));
 9045
 9046        cx.simulate_prompt_answer("Cancel");
 9047        close.await;
 9048
 9049        left_pane
 9050            .update_in(cx, |left_pane, window, cx| {
 9051                left_pane.close_item_by_id(
 9052                    single_entry_items[3].entity_id(),
 9053                    SaveIntent::Skip,
 9054                    window,
 9055                    cx,
 9056                )
 9057            })
 9058            .await
 9059            .unwrap();
 9060
 9061        close = right_pane.update_in(cx, |pane, window, cx| {
 9062            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9063                .unwrap()
 9064        });
 9065        cx.executor().run_until_parked();
 9066
 9067        let details = cx.pending_prompt().unwrap().1;
 9068        assert!(details.contains("1.txt"));
 9069        assert!(!details.contains("2.txt"));
 9070        assert!(details.contains("3.txt"));
 9071        // ideally this assertion could be made, but today we can only
 9072        // save whole items not project items, so the orphaned item 3 causes
 9073        // 4 to be saved too.
 9074        // assert!(!details.contains("4.txt"));
 9075
 9076        cx.simulate_prompt_answer("Save all");
 9077
 9078        cx.executor().run_until_parked();
 9079        close.await;
 9080        right_pane.read_with(cx, |pane, _| {
 9081            assert_eq!(pane.items_len(), 0);
 9082        });
 9083    }
 9084
 9085    #[gpui::test]
 9086    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9087        init_test(cx);
 9088
 9089        let fs = FakeFs::new(cx.executor());
 9090        let project = Project::test(fs, [], cx).await;
 9091        let (workspace, cx) =
 9092            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9093        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9094
 9095        let item = cx.new(|cx| {
 9096            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9097        });
 9098        let item_id = item.entity_id();
 9099        workspace.update_in(cx, |workspace, window, cx| {
 9100            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9101        });
 9102
 9103        // Autosave on window change.
 9104        item.update(cx, |item, cx| {
 9105            SettingsStore::update_global(cx, |settings, cx| {
 9106                settings.update_user_settings(cx, |settings| {
 9107                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9108                })
 9109            });
 9110            item.is_dirty = true;
 9111        });
 9112
 9113        // Deactivating the window saves the file.
 9114        cx.deactivate_window();
 9115        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9116
 9117        // Re-activating the window doesn't save the file.
 9118        cx.update(|window, _| window.activate_window());
 9119        cx.executor().run_until_parked();
 9120        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9121
 9122        // Autosave on focus change.
 9123        item.update_in(cx, |item, window, cx| {
 9124            cx.focus_self(window);
 9125            SettingsStore::update_global(cx, |settings, cx| {
 9126                settings.update_user_settings(cx, |settings| {
 9127                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9128                })
 9129            });
 9130            item.is_dirty = true;
 9131        });
 9132        // Blurring the item saves the file.
 9133        item.update_in(cx, |_, window, _| window.blur());
 9134        cx.executor().run_until_parked();
 9135        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9136
 9137        // Deactivating the window still saves the file.
 9138        item.update_in(cx, |item, window, cx| {
 9139            cx.focus_self(window);
 9140            item.is_dirty = true;
 9141        });
 9142        cx.deactivate_window();
 9143        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9144
 9145        // Autosave after delay.
 9146        item.update(cx, |item, cx| {
 9147            SettingsStore::update_global(cx, |settings, cx| {
 9148                settings.update_user_settings(cx, |settings| {
 9149                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9150                        milliseconds: 500.into(),
 9151                    });
 9152                })
 9153            });
 9154            item.is_dirty = true;
 9155            cx.emit(ItemEvent::Edit);
 9156        });
 9157
 9158        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9159        cx.executor().advance_clock(Duration::from_millis(250));
 9160        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9161
 9162        // After delay expires, the file is saved.
 9163        cx.executor().advance_clock(Duration::from_millis(250));
 9164        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9165
 9166        // Autosave after delay, should save earlier than delay if tab is closed
 9167        item.update(cx, |item, cx| {
 9168            item.is_dirty = true;
 9169            cx.emit(ItemEvent::Edit);
 9170        });
 9171        cx.executor().advance_clock(Duration::from_millis(250));
 9172        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9173
 9174        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9175        pane.update_in(cx, |pane, window, cx| {
 9176            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9177        })
 9178        .await
 9179        .unwrap();
 9180        assert!(!cx.has_pending_prompt());
 9181        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9182
 9183        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9184        workspace.update_in(cx, |workspace, window, cx| {
 9185            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9186        });
 9187        item.update_in(cx, |item, _window, cx| {
 9188            item.is_dirty = true;
 9189            for project_item in &mut item.project_items {
 9190                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9191            }
 9192        });
 9193        cx.run_until_parked();
 9194        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9195
 9196        // Autosave on focus change, ensuring closing the tab counts as such.
 9197        item.update(cx, |item, cx| {
 9198            SettingsStore::update_global(cx, |settings, cx| {
 9199                settings.update_user_settings(cx, |settings| {
 9200                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9201                })
 9202            });
 9203            item.is_dirty = true;
 9204            for project_item in &mut item.project_items {
 9205                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9206            }
 9207        });
 9208
 9209        pane.update_in(cx, |pane, window, cx| {
 9210            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9211        })
 9212        .await
 9213        .unwrap();
 9214        assert!(!cx.has_pending_prompt());
 9215        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9216
 9217        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9218        workspace.update_in(cx, |workspace, window, cx| {
 9219            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9220        });
 9221        item.update_in(cx, |item, window, cx| {
 9222            item.project_items[0].update(cx, |item, _| {
 9223                item.entry_id = None;
 9224            });
 9225            item.is_dirty = true;
 9226            window.blur();
 9227        });
 9228        cx.run_until_parked();
 9229        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9230
 9231        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9232        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9233            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9234        });
 9235        cx.run_until_parked();
 9236        assert!(cx.has_pending_prompt());
 9237        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9238    }
 9239
 9240    #[gpui::test]
 9241    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9242        init_test(cx);
 9243
 9244        let fs = FakeFs::new(cx.executor());
 9245
 9246        let project = Project::test(fs, [], cx).await;
 9247        let (workspace, cx) =
 9248            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9249
 9250        let item = cx.new(|cx| {
 9251            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9252        });
 9253        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9254        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9255        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9256
 9257        workspace.update_in(cx, |workspace, window, cx| {
 9258            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9259            let toolbar_notification_count = toolbar_notify_count.clone();
 9260            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9261                *toolbar_notification_count.borrow_mut() += 1
 9262            })
 9263            .detach();
 9264        });
 9265
 9266        pane.read_with(cx, |pane, _| {
 9267            assert!(!pane.can_navigate_backward());
 9268            assert!(!pane.can_navigate_forward());
 9269        });
 9270
 9271        item.update_in(cx, |item, _, cx| {
 9272            item.set_state("one".to_string(), cx);
 9273        });
 9274
 9275        // Toolbar must be notified to re-render the navigation buttons
 9276        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9277
 9278        pane.read_with(cx, |pane, _| {
 9279            assert!(pane.can_navigate_backward());
 9280            assert!(!pane.can_navigate_forward());
 9281        });
 9282
 9283        workspace
 9284            .update_in(cx, |workspace, window, cx| {
 9285                workspace.go_back(pane.downgrade(), window, cx)
 9286            })
 9287            .await
 9288            .unwrap();
 9289
 9290        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9291        pane.read_with(cx, |pane, _| {
 9292            assert!(!pane.can_navigate_backward());
 9293            assert!(pane.can_navigate_forward());
 9294        });
 9295    }
 9296
 9297    #[gpui::test]
 9298    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9299        init_test(cx);
 9300        let fs = FakeFs::new(cx.executor());
 9301
 9302        let project = Project::test(fs, [], cx).await;
 9303        let (workspace, cx) =
 9304            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9305
 9306        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9307            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9308            workspace.add_panel(panel.clone(), window, cx);
 9309
 9310            workspace
 9311                .right_dock()
 9312                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9313
 9314            panel
 9315        });
 9316
 9317        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9318        pane.update_in(cx, |pane, window, cx| {
 9319            let item = cx.new(TestItem::new);
 9320            pane.add_item(Box::new(item), true, true, None, window, cx);
 9321        });
 9322
 9323        // Transfer focus from center to panel
 9324        workspace.update_in(cx, |workspace, window, cx| {
 9325            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9326        });
 9327
 9328        workspace.update_in(cx, |workspace, window, cx| {
 9329            assert!(workspace.right_dock().read(cx).is_open());
 9330            assert!(!panel.is_zoomed(window, cx));
 9331            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9332        });
 9333
 9334        // Transfer focus from panel to center
 9335        workspace.update_in(cx, |workspace, window, cx| {
 9336            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9337        });
 9338
 9339        workspace.update_in(cx, |workspace, window, cx| {
 9340            assert!(workspace.right_dock().read(cx).is_open());
 9341            assert!(!panel.is_zoomed(window, cx));
 9342            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9343        });
 9344
 9345        // Close the dock
 9346        workspace.update_in(cx, |workspace, window, cx| {
 9347            workspace.toggle_dock(DockPosition::Right, window, cx);
 9348        });
 9349
 9350        workspace.update_in(cx, |workspace, window, cx| {
 9351            assert!(!workspace.right_dock().read(cx).is_open());
 9352            assert!(!panel.is_zoomed(window, cx));
 9353            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9354        });
 9355
 9356        // Open the dock
 9357        workspace.update_in(cx, |workspace, window, cx| {
 9358            workspace.toggle_dock(DockPosition::Right, window, cx);
 9359        });
 9360
 9361        workspace.update_in(cx, |workspace, window, cx| {
 9362            assert!(workspace.right_dock().read(cx).is_open());
 9363            assert!(!panel.is_zoomed(window, cx));
 9364            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9365        });
 9366
 9367        // Focus and zoom panel
 9368        panel.update_in(cx, |panel, window, cx| {
 9369            cx.focus_self(window);
 9370            panel.set_zoomed(true, window, cx)
 9371        });
 9372
 9373        workspace.update_in(cx, |workspace, window, cx| {
 9374            assert!(workspace.right_dock().read(cx).is_open());
 9375            assert!(panel.is_zoomed(window, cx));
 9376            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9377        });
 9378
 9379        // Transfer focus to the center closes the dock
 9380        workspace.update_in(cx, |workspace, window, cx| {
 9381            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9382        });
 9383
 9384        workspace.update_in(cx, |workspace, window, cx| {
 9385            assert!(!workspace.right_dock().read(cx).is_open());
 9386            assert!(panel.is_zoomed(window, cx));
 9387            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9388        });
 9389
 9390        // Transferring focus back to the panel keeps it zoomed
 9391        workspace.update_in(cx, |workspace, window, cx| {
 9392            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9393        });
 9394
 9395        workspace.update_in(cx, |workspace, window, cx| {
 9396            assert!(workspace.right_dock().read(cx).is_open());
 9397            assert!(panel.is_zoomed(window, cx));
 9398            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9399        });
 9400
 9401        // Close the dock while it is zoomed
 9402        workspace.update_in(cx, |workspace, window, cx| {
 9403            workspace.toggle_dock(DockPosition::Right, window, cx)
 9404        });
 9405
 9406        workspace.update_in(cx, |workspace, window, cx| {
 9407            assert!(!workspace.right_dock().read(cx).is_open());
 9408            assert!(panel.is_zoomed(window, cx));
 9409            assert!(workspace.zoomed.is_none());
 9410            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9411        });
 9412
 9413        // Opening the dock, when it's zoomed, retains focus
 9414        workspace.update_in(cx, |workspace, window, cx| {
 9415            workspace.toggle_dock(DockPosition::Right, window, cx)
 9416        });
 9417
 9418        workspace.update_in(cx, |workspace, window, cx| {
 9419            assert!(workspace.right_dock().read(cx).is_open());
 9420            assert!(panel.is_zoomed(window, cx));
 9421            assert!(workspace.zoomed.is_some());
 9422            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9423        });
 9424
 9425        // Unzoom and close the panel, zoom the active pane.
 9426        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9427        workspace.update_in(cx, |workspace, window, cx| {
 9428            workspace.toggle_dock(DockPosition::Right, window, cx)
 9429        });
 9430        pane.update_in(cx, |pane, window, cx| {
 9431            pane.toggle_zoom(&Default::default(), window, cx)
 9432        });
 9433
 9434        // Opening a dock unzooms the pane.
 9435        workspace.update_in(cx, |workspace, window, cx| {
 9436            workspace.toggle_dock(DockPosition::Right, window, cx)
 9437        });
 9438        workspace.update_in(cx, |workspace, window, cx| {
 9439            let pane = pane.read(cx);
 9440            assert!(!pane.is_zoomed());
 9441            assert!(!pane.focus_handle(cx).is_focused(window));
 9442            assert!(workspace.right_dock().read(cx).is_open());
 9443            assert!(workspace.zoomed.is_none());
 9444        });
 9445    }
 9446
 9447    #[gpui::test]
 9448    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9449        init_test(cx);
 9450        let fs = FakeFs::new(cx.executor());
 9451
 9452        let project = Project::test(fs, [], cx).await;
 9453        let (workspace, cx) =
 9454            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9455        workspace.update_in(cx, |workspace, window, cx| {
 9456            // Open two docks
 9457            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9458            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9459
 9460            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9461            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9462
 9463            assert!(left_dock.read(cx).is_open());
 9464            assert!(right_dock.read(cx).is_open());
 9465        });
 9466
 9467        workspace.update_in(cx, |workspace, window, cx| {
 9468            // Toggle all docks - should close both
 9469            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9470
 9471            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9472            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9473            assert!(!left_dock.read(cx).is_open());
 9474            assert!(!right_dock.read(cx).is_open());
 9475        });
 9476
 9477        workspace.update_in(cx, |workspace, window, cx| {
 9478            // Toggle again - should reopen both
 9479            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9480
 9481            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9482            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9483            assert!(left_dock.read(cx).is_open());
 9484            assert!(right_dock.read(cx).is_open());
 9485        });
 9486    }
 9487
 9488    #[gpui::test]
 9489    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9490        init_test(cx);
 9491        let fs = FakeFs::new(cx.executor());
 9492
 9493        let project = Project::test(fs, [], cx).await;
 9494        let (workspace, cx) =
 9495            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9496        workspace.update_in(cx, |workspace, window, cx| {
 9497            // Open two docks
 9498            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9499            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9500
 9501            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9502            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9503
 9504            assert!(left_dock.read(cx).is_open());
 9505            assert!(right_dock.read(cx).is_open());
 9506        });
 9507
 9508        workspace.update_in(cx, |workspace, window, cx| {
 9509            // Close them manually
 9510            workspace.toggle_dock(DockPosition::Left, window, cx);
 9511            workspace.toggle_dock(DockPosition::Right, window, cx);
 9512
 9513            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9514            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9515            assert!(!left_dock.read(cx).is_open());
 9516            assert!(!right_dock.read(cx).is_open());
 9517        });
 9518
 9519        workspace.update_in(cx, |workspace, window, cx| {
 9520            // Toggle all docks - only last closed (right dock) should reopen
 9521            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9522
 9523            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9524            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9525            assert!(!left_dock.read(cx).is_open());
 9526            assert!(right_dock.read(cx).is_open());
 9527        });
 9528    }
 9529
 9530    #[gpui::test]
 9531    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9532        init_test(cx);
 9533        let fs = FakeFs::new(cx.executor());
 9534        let project = Project::test(fs, [], cx).await;
 9535        let (workspace, cx) =
 9536            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9537
 9538        // Open two docks (left and right) with one panel each
 9539        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9540            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9541            workspace.add_panel(left_panel.clone(), window, cx);
 9542
 9543            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9544            workspace.add_panel(right_panel.clone(), window, cx);
 9545
 9546            workspace.toggle_dock(DockPosition::Left, window, cx);
 9547            workspace.toggle_dock(DockPosition::Right, window, cx);
 9548
 9549            // Verify initial state
 9550            assert!(
 9551                workspace.left_dock().read(cx).is_open(),
 9552                "Left dock should be open"
 9553            );
 9554            assert_eq!(
 9555                workspace
 9556                    .left_dock()
 9557                    .read(cx)
 9558                    .visible_panel()
 9559                    .unwrap()
 9560                    .panel_id(),
 9561                left_panel.panel_id(),
 9562                "Left panel should be visible in left dock"
 9563            );
 9564            assert!(
 9565                workspace.right_dock().read(cx).is_open(),
 9566                "Right dock should be open"
 9567            );
 9568            assert_eq!(
 9569                workspace
 9570                    .right_dock()
 9571                    .read(cx)
 9572                    .visible_panel()
 9573                    .unwrap()
 9574                    .panel_id(),
 9575                right_panel.panel_id(),
 9576                "Right panel should be visible in right dock"
 9577            );
 9578            assert!(
 9579                !workspace.bottom_dock().read(cx).is_open(),
 9580                "Bottom dock should be closed"
 9581            );
 9582
 9583            (left_panel, right_panel)
 9584        });
 9585
 9586        // Focus the left panel and move it to the next position (bottom dock)
 9587        workspace.update_in(cx, |workspace, window, cx| {
 9588            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
 9589            assert!(
 9590                left_panel.read(cx).focus_handle(cx).is_focused(window),
 9591                "Left panel should be focused"
 9592            );
 9593        });
 9594
 9595        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9596
 9597        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
 9598        workspace.update(cx, |workspace, cx| {
 9599            assert!(
 9600                !workspace.left_dock().read(cx).is_open(),
 9601                "Left dock should be closed"
 9602            );
 9603            assert!(
 9604                workspace.bottom_dock().read(cx).is_open(),
 9605                "Bottom dock should now be open"
 9606            );
 9607            assert_eq!(
 9608                left_panel.read(cx).position,
 9609                DockPosition::Bottom,
 9610                "Left panel should now be in the bottom dock"
 9611            );
 9612            assert_eq!(
 9613                workspace
 9614                    .bottom_dock()
 9615                    .read(cx)
 9616                    .visible_panel()
 9617                    .unwrap()
 9618                    .panel_id(),
 9619                left_panel.panel_id(),
 9620                "Left panel should be the visible panel in the bottom dock"
 9621            );
 9622        });
 9623
 9624        // Toggle all docks off
 9625        workspace.update_in(cx, |workspace, window, cx| {
 9626            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9627            assert!(
 9628                !workspace.left_dock().read(cx).is_open(),
 9629                "Left dock should be closed"
 9630            );
 9631            assert!(
 9632                !workspace.right_dock().read(cx).is_open(),
 9633                "Right dock should be closed"
 9634            );
 9635            assert!(
 9636                !workspace.bottom_dock().read(cx).is_open(),
 9637                "Bottom dock should be closed"
 9638            );
 9639        });
 9640
 9641        // Toggle all docks back on and verify positions are restored
 9642        workspace.update_in(cx, |workspace, window, cx| {
 9643            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9644            assert!(
 9645                !workspace.left_dock().read(cx).is_open(),
 9646                "Left dock should remain closed"
 9647            );
 9648            assert!(
 9649                workspace.right_dock().read(cx).is_open(),
 9650                "Right dock should remain open"
 9651            );
 9652            assert!(
 9653                workspace.bottom_dock().read(cx).is_open(),
 9654                "Bottom dock should remain open"
 9655            );
 9656            assert_eq!(
 9657                left_panel.read(cx).position,
 9658                DockPosition::Bottom,
 9659                "Left panel should remain in the bottom dock"
 9660            );
 9661            assert_eq!(
 9662                right_panel.read(cx).position,
 9663                DockPosition::Right,
 9664                "Right panel should remain in the right dock"
 9665            );
 9666            assert_eq!(
 9667                workspace
 9668                    .bottom_dock()
 9669                    .read(cx)
 9670                    .visible_panel()
 9671                    .unwrap()
 9672                    .panel_id(),
 9673                left_panel.panel_id(),
 9674                "Left panel should be the visible panel in the right dock"
 9675            );
 9676        });
 9677    }
 9678
 9679    #[gpui::test]
 9680    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 9681        init_test(cx);
 9682
 9683        let fs = FakeFs::new(cx.executor());
 9684
 9685        let project = Project::test(fs, None, cx).await;
 9686        let (workspace, cx) =
 9687            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9688
 9689        // Let's arrange the panes like this:
 9690        //
 9691        // +-----------------------+
 9692        // |         top           |
 9693        // +------+--------+-------+
 9694        // | left | center | right |
 9695        // +------+--------+-------+
 9696        // |        bottom         |
 9697        // +-----------------------+
 9698
 9699        let top_item = cx.new(|cx| {
 9700            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9701        });
 9702        let bottom_item = cx.new(|cx| {
 9703            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9704        });
 9705        let left_item = cx.new(|cx| {
 9706            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9707        });
 9708        let right_item = cx.new(|cx| {
 9709            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9710        });
 9711        let center_item = cx.new(|cx| {
 9712            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9713        });
 9714
 9715        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9716            let top_pane_id = workspace.active_pane().entity_id();
 9717            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9718            workspace.split_pane(
 9719                workspace.active_pane().clone(),
 9720                SplitDirection::Down,
 9721                window,
 9722                cx,
 9723            );
 9724            top_pane_id
 9725        });
 9726        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9727            let bottom_pane_id = workspace.active_pane().entity_id();
 9728            workspace.add_item_to_active_pane(
 9729                Box::new(bottom_item.clone()),
 9730                None,
 9731                false,
 9732                window,
 9733                cx,
 9734            );
 9735            workspace.split_pane(
 9736                workspace.active_pane().clone(),
 9737                SplitDirection::Up,
 9738                window,
 9739                cx,
 9740            );
 9741            bottom_pane_id
 9742        });
 9743        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9744            let left_pane_id = workspace.active_pane().entity_id();
 9745            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9746            workspace.split_pane(
 9747                workspace.active_pane().clone(),
 9748                SplitDirection::Right,
 9749                window,
 9750                cx,
 9751            );
 9752            left_pane_id
 9753        });
 9754        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9755            let right_pane_id = workspace.active_pane().entity_id();
 9756            workspace.add_item_to_active_pane(
 9757                Box::new(right_item.clone()),
 9758                None,
 9759                false,
 9760                window,
 9761                cx,
 9762            );
 9763            workspace.split_pane(
 9764                workspace.active_pane().clone(),
 9765                SplitDirection::Left,
 9766                window,
 9767                cx,
 9768            );
 9769            right_pane_id
 9770        });
 9771        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9772            let center_pane_id = workspace.active_pane().entity_id();
 9773            workspace.add_item_to_active_pane(
 9774                Box::new(center_item.clone()),
 9775                None,
 9776                false,
 9777                window,
 9778                cx,
 9779            );
 9780            center_pane_id
 9781        });
 9782        cx.executor().run_until_parked();
 9783
 9784        workspace.update_in(cx, |workspace, window, cx| {
 9785            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9786
 9787            // Join into next from center pane into right
 9788            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9789        });
 9790
 9791        workspace.update_in(cx, |workspace, window, cx| {
 9792            let active_pane = workspace.active_pane();
 9793            assert_eq!(right_pane_id, active_pane.entity_id());
 9794            assert_eq!(2, active_pane.read(cx).items_len());
 9795            let item_ids_in_pane =
 9796                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9797            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9798            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9799
 9800            // Join into next from right pane into bottom
 9801            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9802        });
 9803
 9804        workspace.update_in(cx, |workspace, window, cx| {
 9805            let active_pane = workspace.active_pane();
 9806            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9807            assert_eq!(3, active_pane.read(cx).items_len());
 9808            let item_ids_in_pane =
 9809                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9810            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9811            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9812            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9813
 9814            // Join into next from bottom pane into left
 9815            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9816        });
 9817
 9818        workspace.update_in(cx, |workspace, window, cx| {
 9819            let active_pane = workspace.active_pane();
 9820            assert_eq!(left_pane_id, active_pane.entity_id());
 9821            assert_eq!(4, active_pane.read(cx).items_len());
 9822            let item_ids_in_pane =
 9823                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9824            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9825            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9826            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9827            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9828
 9829            // Join into next from left pane into top
 9830            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9831        });
 9832
 9833        workspace.update_in(cx, |workspace, window, cx| {
 9834            let active_pane = workspace.active_pane();
 9835            assert_eq!(top_pane_id, active_pane.entity_id());
 9836            assert_eq!(5, active_pane.read(cx).items_len());
 9837            let item_ids_in_pane =
 9838                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9839            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9840            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9841            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9842            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9843            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9844
 9845            // Single pane left: no-op
 9846            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9847        });
 9848
 9849        workspace.update(cx, |workspace, _cx| {
 9850            let active_pane = workspace.active_pane();
 9851            assert_eq!(top_pane_id, active_pane.entity_id());
 9852        });
 9853    }
 9854
 9855    fn add_an_item_to_active_pane(
 9856        cx: &mut VisualTestContext,
 9857        workspace: &Entity<Workspace>,
 9858        item_id: u64,
 9859    ) -> Entity<TestItem> {
 9860        let item = cx.new(|cx| {
 9861            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9862                item_id,
 9863                "item{item_id}.txt",
 9864                cx,
 9865            )])
 9866        });
 9867        workspace.update_in(cx, |workspace, window, cx| {
 9868            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9869        });
 9870        item
 9871    }
 9872
 9873    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9874        workspace.update_in(cx, |workspace, window, cx| {
 9875            workspace.split_pane(
 9876                workspace.active_pane().clone(),
 9877                SplitDirection::Right,
 9878                window,
 9879                cx,
 9880            )
 9881        })
 9882    }
 9883
 9884    #[gpui::test]
 9885    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9886        init_test(cx);
 9887        let fs = FakeFs::new(cx.executor());
 9888        let project = Project::test(fs, None, cx).await;
 9889        let (workspace, cx) =
 9890            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9891
 9892        add_an_item_to_active_pane(cx, &workspace, 1);
 9893        split_pane(cx, &workspace);
 9894        add_an_item_to_active_pane(cx, &workspace, 2);
 9895        split_pane(cx, &workspace); // empty pane
 9896        split_pane(cx, &workspace);
 9897        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9898
 9899        cx.executor().run_until_parked();
 9900
 9901        workspace.update(cx, |workspace, cx| {
 9902            let num_panes = workspace.panes().len();
 9903            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9904            let active_item = workspace
 9905                .active_pane()
 9906                .read(cx)
 9907                .active_item()
 9908                .expect("item is in focus");
 9909
 9910            assert_eq!(num_panes, 4);
 9911            assert_eq!(num_items_in_current_pane, 1);
 9912            assert_eq!(active_item.item_id(), last_item.item_id());
 9913        });
 9914
 9915        workspace.update_in(cx, |workspace, window, cx| {
 9916            workspace.join_all_panes(window, cx);
 9917        });
 9918
 9919        workspace.update(cx, |workspace, cx| {
 9920            let num_panes = workspace.panes().len();
 9921            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9922            let active_item = workspace
 9923                .active_pane()
 9924                .read(cx)
 9925                .active_item()
 9926                .expect("item is in focus");
 9927
 9928            assert_eq!(num_panes, 1);
 9929            assert_eq!(num_items_in_current_pane, 3);
 9930            assert_eq!(active_item.item_id(), last_item.item_id());
 9931        });
 9932    }
 9933    struct TestModal(FocusHandle);
 9934
 9935    impl TestModal {
 9936        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9937            Self(cx.focus_handle())
 9938        }
 9939    }
 9940
 9941    impl EventEmitter<DismissEvent> for TestModal {}
 9942
 9943    impl Focusable for TestModal {
 9944        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9945            self.0.clone()
 9946        }
 9947    }
 9948
 9949    impl ModalView for TestModal {}
 9950
 9951    impl Render for TestModal {
 9952        fn render(
 9953            &mut self,
 9954            _window: &mut Window,
 9955            _cx: &mut Context<TestModal>,
 9956        ) -> impl IntoElement {
 9957            div().track_focus(&self.0)
 9958        }
 9959    }
 9960
 9961    #[gpui::test]
 9962    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9963        init_test(cx);
 9964        let fs = FakeFs::new(cx.executor());
 9965
 9966        let project = Project::test(fs, [], cx).await;
 9967        let (workspace, cx) =
 9968            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9969
 9970        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9971            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9972            workspace.add_panel(panel_1.clone(), window, cx);
 9973            workspace.toggle_dock(DockPosition::Left, window, cx);
 9974            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9975            workspace.add_panel(panel_2.clone(), window, cx);
 9976            workspace.toggle_dock(DockPosition::Right, window, cx);
 9977
 9978            let left_dock = workspace.left_dock();
 9979            assert_eq!(
 9980                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9981                panel_1.panel_id()
 9982            );
 9983            assert_eq!(
 9984                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9985                panel_1.size(window, cx)
 9986            );
 9987
 9988            left_dock.update(cx, |left_dock, cx| {
 9989                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9990            });
 9991            assert_eq!(
 9992                workspace
 9993                    .right_dock()
 9994                    .read(cx)
 9995                    .visible_panel()
 9996                    .unwrap()
 9997                    .panel_id(),
 9998                panel_2.panel_id(),
 9999            );
10000
10001            (panel_1, panel_2)
10002        });
10003
10004        // Move panel_1 to the right
10005        panel_1.update_in(cx, |panel_1, window, cx| {
10006            panel_1.set_position(DockPosition::Right, window, cx)
10007        });
10008
10009        workspace.update_in(cx, |workspace, window, cx| {
10010            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10011            // Since it was the only panel on the left, the left dock should now be closed.
10012            assert!(!workspace.left_dock().read(cx).is_open());
10013            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10014            let right_dock = workspace.right_dock();
10015            assert_eq!(
10016                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10017                panel_1.panel_id()
10018            );
10019            assert_eq!(
10020                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10021                px(1337.)
10022            );
10023
10024            // Now we move panel_2 to the left
10025            panel_2.set_position(DockPosition::Left, window, cx);
10026        });
10027
10028        workspace.update(cx, |workspace, cx| {
10029            // Since panel_2 was not visible on the right, we don't open the left dock.
10030            assert!(!workspace.left_dock().read(cx).is_open());
10031            // And the right dock is unaffected in its displaying of panel_1
10032            assert!(workspace.right_dock().read(cx).is_open());
10033            assert_eq!(
10034                workspace
10035                    .right_dock()
10036                    .read(cx)
10037                    .visible_panel()
10038                    .unwrap()
10039                    .panel_id(),
10040                panel_1.panel_id(),
10041            );
10042        });
10043
10044        // Move panel_1 back to the left
10045        panel_1.update_in(cx, |panel_1, window, cx| {
10046            panel_1.set_position(DockPosition::Left, window, cx)
10047        });
10048
10049        workspace.update_in(cx, |workspace, window, cx| {
10050            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10051            let left_dock = workspace.left_dock();
10052            assert!(left_dock.read(cx).is_open());
10053            assert_eq!(
10054                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10055                panel_1.panel_id()
10056            );
10057            assert_eq!(
10058                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10059                px(1337.)
10060            );
10061            // And the right dock should be closed as it no longer has any panels.
10062            assert!(!workspace.right_dock().read(cx).is_open());
10063
10064            // Now we move panel_1 to the bottom
10065            panel_1.set_position(DockPosition::Bottom, window, cx);
10066        });
10067
10068        workspace.update_in(cx, |workspace, window, cx| {
10069            // Since panel_1 was visible on the left, we close the left dock.
10070            assert!(!workspace.left_dock().read(cx).is_open());
10071            // The bottom dock is sized based on the panel's default size,
10072            // since the panel orientation changed from vertical to horizontal.
10073            let bottom_dock = workspace.bottom_dock();
10074            assert_eq!(
10075                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10076                panel_1.size(window, cx),
10077            );
10078            // Close bottom dock and move panel_1 back to the left.
10079            bottom_dock.update(cx, |bottom_dock, cx| {
10080                bottom_dock.set_open(false, window, cx)
10081            });
10082            panel_1.set_position(DockPosition::Left, window, cx);
10083        });
10084
10085        // Emit activated event on panel 1
10086        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10087
10088        // Now the left dock is open and panel_1 is active and focused.
10089        workspace.update_in(cx, |workspace, window, cx| {
10090            let left_dock = workspace.left_dock();
10091            assert!(left_dock.read(cx).is_open());
10092            assert_eq!(
10093                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10094                panel_1.panel_id(),
10095            );
10096            assert!(panel_1.focus_handle(cx).is_focused(window));
10097        });
10098
10099        // Emit closed event on panel 2, which is not active
10100        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10101
10102        // Wo don't close the left dock, because panel_2 wasn't the active panel
10103        workspace.update(cx, |workspace, cx| {
10104            let left_dock = workspace.left_dock();
10105            assert!(left_dock.read(cx).is_open());
10106            assert_eq!(
10107                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10108                panel_1.panel_id(),
10109            );
10110        });
10111
10112        // Emitting a ZoomIn event shows the panel as zoomed.
10113        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10114        workspace.read_with(cx, |workspace, _| {
10115            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10116            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10117        });
10118
10119        // Move panel to another dock while it is zoomed
10120        panel_1.update_in(cx, |panel, window, cx| {
10121            panel.set_position(DockPosition::Right, window, cx)
10122        });
10123        workspace.read_with(cx, |workspace, _| {
10124            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10125
10126            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10127        });
10128
10129        // This is a helper for getting a:
10130        // - valid focus on an element,
10131        // - that isn't a part of the panes and panels system of the Workspace,
10132        // - and doesn't trigger the 'on_focus_lost' API.
10133        let focus_other_view = {
10134            let workspace = workspace.clone();
10135            move |cx: &mut VisualTestContext| {
10136                workspace.update_in(cx, |workspace, window, cx| {
10137                    if workspace.active_modal::<TestModal>(cx).is_some() {
10138                        workspace.toggle_modal(window, cx, TestModal::new);
10139                        workspace.toggle_modal(window, cx, TestModal::new);
10140                    } else {
10141                        workspace.toggle_modal(window, cx, TestModal::new);
10142                    }
10143                })
10144            }
10145        };
10146
10147        // If focus is transferred to another view that's not a panel or another pane, we still show
10148        // the panel as zoomed.
10149        focus_other_view(cx);
10150        workspace.read_with(cx, |workspace, _| {
10151            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10152            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10153        });
10154
10155        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10156        workspace.update_in(cx, |_workspace, window, cx| {
10157            cx.focus_self(window);
10158        });
10159        workspace.read_with(cx, |workspace, _| {
10160            assert_eq!(workspace.zoomed, None);
10161            assert_eq!(workspace.zoomed_position, None);
10162        });
10163
10164        // If focus is transferred again to another view that's not a panel or a pane, we won't
10165        // show the panel as zoomed because it wasn't zoomed before.
10166        focus_other_view(cx);
10167        workspace.read_with(cx, |workspace, _| {
10168            assert_eq!(workspace.zoomed, None);
10169            assert_eq!(workspace.zoomed_position, None);
10170        });
10171
10172        // When the panel is activated, it is zoomed again.
10173        cx.dispatch_action(ToggleRightDock);
10174        workspace.read_with(cx, |workspace, _| {
10175            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10176            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10177        });
10178
10179        // Emitting a ZoomOut event unzooms the panel.
10180        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10181        workspace.read_with(cx, |workspace, _| {
10182            assert_eq!(workspace.zoomed, None);
10183            assert_eq!(workspace.zoomed_position, None);
10184        });
10185
10186        // Emit closed event on panel 1, which is active
10187        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10188
10189        // Now the left dock is closed, because panel_1 was the active panel
10190        workspace.update(cx, |workspace, cx| {
10191            let right_dock = workspace.right_dock();
10192            assert!(!right_dock.read(cx).is_open());
10193        });
10194    }
10195
10196    #[gpui::test]
10197    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10198        init_test(cx);
10199
10200        let fs = FakeFs::new(cx.background_executor.clone());
10201        let project = Project::test(fs, [], cx).await;
10202        let (workspace, cx) =
10203            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10204        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10205
10206        let dirty_regular_buffer = cx.new(|cx| {
10207            TestItem::new(cx)
10208                .with_dirty(true)
10209                .with_label("1.txt")
10210                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10211        });
10212        let dirty_regular_buffer_2 = cx.new(|cx| {
10213            TestItem::new(cx)
10214                .with_dirty(true)
10215                .with_label("2.txt")
10216                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10217        });
10218        let dirty_multi_buffer_with_both = cx.new(|cx| {
10219            TestItem::new(cx)
10220                .with_dirty(true)
10221                .with_buffer_kind(ItemBufferKind::Multibuffer)
10222                .with_label("Fake Project Search")
10223                .with_project_items(&[
10224                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10225                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10226                ])
10227        });
10228        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10229        workspace.update_in(cx, |workspace, window, cx| {
10230            workspace.add_item(
10231                pane.clone(),
10232                Box::new(dirty_regular_buffer.clone()),
10233                None,
10234                false,
10235                false,
10236                window,
10237                cx,
10238            );
10239            workspace.add_item(
10240                pane.clone(),
10241                Box::new(dirty_regular_buffer_2.clone()),
10242                None,
10243                false,
10244                false,
10245                window,
10246                cx,
10247            );
10248            workspace.add_item(
10249                pane.clone(),
10250                Box::new(dirty_multi_buffer_with_both.clone()),
10251                None,
10252                false,
10253                false,
10254                window,
10255                cx,
10256            );
10257        });
10258
10259        pane.update_in(cx, |pane, window, cx| {
10260            pane.activate_item(2, true, true, window, cx);
10261            assert_eq!(
10262                pane.active_item().unwrap().item_id(),
10263                multi_buffer_with_both_files_id,
10264                "Should select the multi buffer in the pane"
10265            );
10266        });
10267        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10268            pane.close_other_items(
10269                &CloseOtherItems {
10270                    save_intent: Some(SaveIntent::Save),
10271                    close_pinned: true,
10272                },
10273                None,
10274                window,
10275                cx,
10276            )
10277        });
10278        cx.background_executor.run_until_parked();
10279        assert!(!cx.has_pending_prompt());
10280        close_all_but_multi_buffer_task
10281            .await
10282            .expect("Closing all buffers but the multi buffer failed");
10283        pane.update(cx, |pane, cx| {
10284            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10285            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10286            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10287            assert_eq!(pane.items_len(), 1);
10288            assert_eq!(
10289                pane.active_item().unwrap().item_id(),
10290                multi_buffer_with_both_files_id,
10291                "Should have only the multi buffer left in the pane"
10292            );
10293            assert!(
10294                dirty_multi_buffer_with_both.read(cx).is_dirty,
10295                "The multi buffer containing the unsaved buffer should still be dirty"
10296            );
10297        });
10298
10299        dirty_regular_buffer.update(cx, |buffer, cx| {
10300            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10301        });
10302
10303        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10304            pane.close_active_item(
10305                &CloseActiveItem {
10306                    save_intent: Some(SaveIntent::Close),
10307                    close_pinned: false,
10308                },
10309                window,
10310                cx,
10311            )
10312        });
10313        cx.background_executor.run_until_parked();
10314        assert!(
10315            cx.has_pending_prompt(),
10316            "Dirty multi buffer should prompt a save dialog"
10317        );
10318        cx.simulate_prompt_answer("Save");
10319        cx.background_executor.run_until_parked();
10320        close_multi_buffer_task
10321            .await
10322            .expect("Closing the multi buffer failed");
10323        pane.update(cx, |pane, cx| {
10324            assert_eq!(
10325                dirty_multi_buffer_with_both.read(cx).save_count,
10326                1,
10327                "Multi buffer item should get be saved"
10328            );
10329            // Test impl does not save inner items, so we do not assert them
10330            assert_eq!(
10331                pane.items_len(),
10332                0,
10333                "No more items should be left in the pane"
10334            );
10335            assert!(pane.active_item().is_none());
10336        });
10337    }
10338
10339    #[gpui::test]
10340    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10341        cx: &mut TestAppContext,
10342    ) {
10343        init_test(cx);
10344
10345        let fs = FakeFs::new(cx.background_executor.clone());
10346        let project = Project::test(fs, [], cx).await;
10347        let (workspace, cx) =
10348            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10349        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10350
10351        let dirty_regular_buffer = cx.new(|cx| {
10352            TestItem::new(cx)
10353                .with_dirty(true)
10354                .with_label("1.txt")
10355                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10356        });
10357        let dirty_regular_buffer_2 = cx.new(|cx| {
10358            TestItem::new(cx)
10359                .with_dirty(true)
10360                .with_label("2.txt")
10361                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10362        });
10363        let clear_regular_buffer = cx.new(|cx| {
10364            TestItem::new(cx)
10365                .with_label("3.txt")
10366                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10367        });
10368
10369        let dirty_multi_buffer_with_both = cx.new(|cx| {
10370            TestItem::new(cx)
10371                .with_dirty(true)
10372                .with_buffer_kind(ItemBufferKind::Multibuffer)
10373                .with_label("Fake Project Search")
10374                .with_project_items(&[
10375                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10376                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10377                    clear_regular_buffer.read(cx).project_items[0].clone(),
10378                ])
10379        });
10380        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10381        workspace.update_in(cx, |workspace, window, cx| {
10382            workspace.add_item(
10383                pane.clone(),
10384                Box::new(dirty_regular_buffer.clone()),
10385                None,
10386                false,
10387                false,
10388                window,
10389                cx,
10390            );
10391            workspace.add_item(
10392                pane.clone(),
10393                Box::new(dirty_multi_buffer_with_both.clone()),
10394                None,
10395                false,
10396                false,
10397                window,
10398                cx,
10399            );
10400        });
10401
10402        pane.update_in(cx, |pane, window, cx| {
10403            pane.activate_item(1, true, true, window, cx);
10404            assert_eq!(
10405                pane.active_item().unwrap().item_id(),
10406                multi_buffer_with_both_files_id,
10407                "Should select the multi buffer in the pane"
10408            );
10409        });
10410        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10411            pane.close_active_item(
10412                &CloseActiveItem {
10413                    save_intent: None,
10414                    close_pinned: false,
10415                },
10416                window,
10417                cx,
10418            )
10419        });
10420        cx.background_executor.run_until_parked();
10421        assert!(
10422            cx.has_pending_prompt(),
10423            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10424        );
10425    }
10426
10427    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10428    /// closed when they are deleted from disk.
10429    #[gpui::test]
10430    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10431        init_test(cx);
10432
10433        // Enable the close_on_disk_deletion setting
10434        cx.update_global(|store: &mut SettingsStore, cx| {
10435            store.update_user_settings(cx, |settings| {
10436                settings.workspace.close_on_file_delete = Some(true);
10437            });
10438        });
10439
10440        let fs = FakeFs::new(cx.background_executor.clone());
10441        let project = Project::test(fs, [], cx).await;
10442        let (workspace, cx) =
10443            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10444        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10445
10446        // Create a test item that simulates a file
10447        let item = cx.new(|cx| {
10448            TestItem::new(cx)
10449                .with_label("test.txt")
10450                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10451        });
10452
10453        // Add item to workspace
10454        workspace.update_in(cx, |workspace, window, cx| {
10455            workspace.add_item(
10456                pane.clone(),
10457                Box::new(item.clone()),
10458                None,
10459                false,
10460                false,
10461                window,
10462                cx,
10463            );
10464        });
10465
10466        // Verify the item is in the pane
10467        pane.read_with(cx, |pane, _| {
10468            assert_eq!(pane.items().count(), 1);
10469        });
10470
10471        // Simulate file deletion by setting the item's deleted state
10472        item.update(cx, |item, _| {
10473            item.set_has_deleted_file(true);
10474        });
10475
10476        // Emit UpdateTab event to trigger the close behavior
10477        cx.run_until_parked();
10478        item.update(cx, |_, cx| {
10479            cx.emit(ItemEvent::UpdateTab);
10480        });
10481
10482        // Allow the close operation to complete
10483        cx.run_until_parked();
10484
10485        // Verify the item was automatically closed
10486        pane.read_with(cx, |pane, _| {
10487            assert_eq!(
10488                pane.items().count(),
10489                0,
10490                "Item should be automatically closed when file is deleted"
10491            );
10492        });
10493    }
10494
10495    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10496    /// open with a strikethrough when they are deleted from disk.
10497    #[gpui::test]
10498    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10499        init_test(cx);
10500
10501        // Ensure close_on_disk_deletion is disabled (default)
10502        cx.update_global(|store: &mut SettingsStore, cx| {
10503            store.update_user_settings(cx, |settings| {
10504                settings.workspace.close_on_file_delete = Some(false);
10505            });
10506        });
10507
10508        let fs = FakeFs::new(cx.background_executor.clone());
10509        let project = Project::test(fs, [], cx).await;
10510        let (workspace, cx) =
10511            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10512        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10513
10514        // Create a test item that simulates a file
10515        let item = cx.new(|cx| {
10516            TestItem::new(cx)
10517                .with_label("test.txt")
10518                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10519        });
10520
10521        // Add item to workspace
10522        workspace.update_in(cx, |workspace, window, cx| {
10523            workspace.add_item(
10524                pane.clone(),
10525                Box::new(item.clone()),
10526                None,
10527                false,
10528                false,
10529                window,
10530                cx,
10531            );
10532        });
10533
10534        // Verify the item is in the pane
10535        pane.read_with(cx, |pane, _| {
10536            assert_eq!(pane.items().count(), 1);
10537        });
10538
10539        // Simulate file deletion
10540        item.update(cx, |item, _| {
10541            item.set_has_deleted_file(true);
10542        });
10543
10544        // Emit UpdateTab event
10545        cx.run_until_parked();
10546        item.update(cx, |_, cx| {
10547            cx.emit(ItemEvent::UpdateTab);
10548        });
10549
10550        // Allow any potential close operation to complete
10551        cx.run_until_parked();
10552
10553        // Verify the item remains open (with strikethrough)
10554        pane.read_with(cx, |pane, _| {
10555            assert_eq!(
10556                pane.items().count(),
10557                1,
10558                "Item should remain open when close_on_disk_deletion is disabled"
10559            );
10560        });
10561
10562        // Verify the item shows as deleted
10563        item.read_with(cx, |item, _| {
10564            assert!(
10565                item.has_deleted_file,
10566                "Item should be marked as having deleted file"
10567            );
10568        });
10569    }
10570
10571    /// Tests that dirty files are not automatically closed when deleted from disk,
10572    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
10573    /// unsaved changes without being prompted.
10574    #[gpui::test]
10575    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10576        init_test(cx);
10577
10578        // Enable the close_on_file_delete setting
10579        cx.update_global(|store: &mut SettingsStore, cx| {
10580            store.update_user_settings(cx, |settings| {
10581                settings.workspace.close_on_file_delete = Some(true);
10582            });
10583        });
10584
10585        let fs = FakeFs::new(cx.background_executor.clone());
10586        let project = Project::test(fs, [], cx).await;
10587        let (workspace, cx) =
10588            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10589        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10590
10591        // Create a dirty test item
10592        let item = cx.new(|cx| {
10593            TestItem::new(cx)
10594                .with_dirty(true)
10595                .with_label("test.txt")
10596                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10597        });
10598
10599        // Add item to workspace
10600        workspace.update_in(cx, |workspace, window, cx| {
10601            workspace.add_item(
10602                pane.clone(),
10603                Box::new(item.clone()),
10604                None,
10605                false,
10606                false,
10607                window,
10608                cx,
10609            );
10610        });
10611
10612        // Simulate file deletion
10613        item.update(cx, |item, _| {
10614            item.set_has_deleted_file(true);
10615        });
10616
10617        // Emit UpdateTab event to trigger the close behavior
10618        cx.run_until_parked();
10619        item.update(cx, |_, cx| {
10620            cx.emit(ItemEvent::UpdateTab);
10621        });
10622
10623        // Allow any potential close operation to complete
10624        cx.run_until_parked();
10625
10626        // Verify the item remains open (dirty files are not auto-closed)
10627        pane.read_with(cx, |pane, _| {
10628            assert_eq!(
10629                pane.items().count(),
10630                1,
10631                "Dirty items should not be automatically closed even when file is deleted"
10632            );
10633        });
10634
10635        // Verify the item is marked as deleted and still dirty
10636        item.read_with(cx, |item, _| {
10637            assert!(
10638                item.has_deleted_file,
10639                "Item should be marked as having deleted file"
10640            );
10641            assert!(item.is_dirty, "Item should still be dirty");
10642        });
10643    }
10644
10645    /// Tests that navigation history is cleaned up when files are auto-closed
10646    /// due to deletion from disk.
10647    #[gpui::test]
10648    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
10649        init_test(cx);
10650
10651        // Enable the close_on_file_delete setting
10652        cx.update_global(|store: &mut SettingsStore, cx| {
10653            store.update_user_settings(cx, |settings| {
10654                settings.workspace.close_on_file_delete = Some(true);
10655            });
10656        });
10657
10658        let fs = FakeFs::new(cx.background_executor.clone());
10659        let project = Project::test(fs, [], cx).await;
10660        let (workspace, cx) =
10661            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10662        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10663
10664        // Create test items
10665        let item1 = cx.new(|cx| {
10666            TestItem::new(cx)
10667                .with_label("test1.txt")
10668                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
10669        });
10670        let item1_id = item1.item_id();
10671
10672        let item2 = cx.new(|cx| {
10673            TestItem::new(cx)
10674                .with_label("test2.txt")
10675                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
10676        });
10677
10678        // Add items to workspace
10679        workspace.update_in(cx, |workspace, window, cx| {
10680            workspace.add_item(
10681                pane.clone(),
10682                Box::new(item1.clone()),
10683                None,
10684                false,
10685                false,
10686                window,
10687                cx,
10688            );
10689            workspace.add_item(
10690                pane.clone(),
10691                Box::new(item2.clone()),
10692                None,
10693                false,
10694                false,
10695                window,
10696                cx,
10697            );
10698        });
10699
10700        // Activate item1 to ensure it gets navigation entries
10701        pane.update_in(cx, |pane, window, cx| {
10702            pane.activate_item(0, true, true, window, cx);
10703        });
10704
10705        // Switch to item2 and back to create navigation history
10706        pane.update_in(cx, |pane, window, cx| {
10707            pane.activate_item(1, true, true, window, cx);
10708        });
10709        cx.run_until_parked();
10710
10711        pane.update_in(cx, |pane, window, cx| {
10712            pane.activate_item(0, true, true, window, cx);
10713        });
10714        cx.run_until_parked();
10715
10716        // Simulate file deletion for item1
10717        item1.update(cx, |item, _| {
10718            item.set_has_deleted_file(true);
10719        });
10720
10721        // Emit UpdateTab event to trigger the close behavior
10722        item1.update(cx, |_, cx| {
10723            cx.emit(ItemEvent::UpdateTab);
10724        });
10725        cx.run_until_parked();
10726
10727        // Verify item1 was closed
10728        pane.read_with(cx, |pane, _| {
10729            assert_eq!(
10730                pane.items().count(),
10731                1,
10732                "Should have 1 item remaining after auto-close"
10733            );
10734        });
10735
10736        // Check navigation history after close
10737        let has_item = pane.read_with(cx, |pane, cx| {
10738            let mut has_item = false;
10739            pane.nav_history().for_each_entry(cx, |entry, _| {
10740                if entry.item.id() == item1_id {
10741                    has_item = true;
10742                }
10743            });
10744            has_item
10745        });
10746
10747        assert!(
10748            !has_item,
10749            "Navigation history should not contain closed item entries"
10750        );
10751    }
10752
10753    #[gpui::test]
10754    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10755        cx: &mut TestAppContext,
10756    ) {
10757        init_test(cx);
10758
10759        let fs = FakeFs::new(cx.background_executor.clone());
10760        let project = Project::test(fs, [], cx).await;
10761        let (workspace, cx) =
10762            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10763        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10764
10765        let dirty_regular_buffer = cx.new(|cx| {
10766            TestItem::new(cx)
10767                .with_dirty(true)
10768                .with_label("1.txt")
10769                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10770        });
10771        let dirty_regular_buffer_2 = cx.new(|cx| {
10772            TestItem::new(cx)
10773                .with_dirty(true)
10774                .with_label("2.txt")
10775                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10776        });
10777        let clear_regular_buffer = cx.new(|cx| {
10778            TestItem::new(cx)
10779                .with_label("3.txt")
10780                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10781        });
10782
10783        let dirty_multi_buffer = cx.new(|cx| {
10784            TestItem::new(cx)
10785                .with_dirty(true)
10786                .with_buffer_kind(ItemBufferKind::Multibuffer)
10787                .with_label("Fake Project Search")
10788                .with_project_items(&[
10789                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10790                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10791                    clear_regular_buffer.read(cx).project_items[0].clone(),
10792                ])
10793        });
10794        workspace.update_in(cx, |workspace, window, cx| {
10795            workspace.add_item(
10796                pane.clone(),
10797                Box::new(dirty_regular_buffer.clone()),
10798                None,
10799                false,
10800                false,
10801                window,
10802                cx,
10803            );
10804            workspace.add_item(
10805                pane.clone(),
10806                Box::new(dirty_regular_buffer_2.clone()),
10807                None,
10808                false,
10809                false,
10810                window,
10811                cx,
10812            );
10813            workspace.add_item(
10814                pane.clone(),
10815                Box::new(dirty_multi_buffer.clone()),
10816                None,
10817                false,
10818                false,
10819                window,
10820                cx,
10821            );
10822        });
10823
10824        pane.update_in(cx, |pane, window, cx| {
10825            pane.activate_item(2, true, true, window, cx);
10826            assert_eq!(
10827                pane.active_item().unwrap().item_id(),
10828                dirty_multi_buffer.item_id(),
10829                "Should select the multi buffer in the pane"
10830            );
10831        });
10832        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10833            pane.close_active_item(
10834                &CloseActiveItem {
10835                    save_intent: None,
10836                    close_pinned: false,
10837                },
10838                window,
10839                cx,
10840            )
10841        });
10842        cx.background_executor.run_until_parked();
10843        assert!(
10844            !cx.has_pending_prompt(),
10845            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10846        );
10847        close_multi_buffer_task
10848            .await
10849            .expect("Closing multi buffer failed");
10850        pane.update(cx, |pane, cx| {
10851            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10852            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10853            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10854            assert_eq!(
10855                pane.items()
10856                    .map(|item| item.item_id())
10857                    .sorted()
10858                    .collect::<Vec<_>>(),
10859                vec![
10860                    dirty_regular_buffer.item_id(),
10861                    dirty_regular_buffer_2.item_id(),
10862                ],
10863                "Should have no multi buffer left in the pane"
10864            );
10865            assert!(dirty_regular_buffer.read(cx).is_dirty);
10866            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10867        });
10868    }
10869
10870    #[gpui::test]
10871    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10872        init_test(cx);
10873        let fs = FakeFs::new(cx.executor());
10874        let project = Project::test(fs, [], cx).await;
10875        let (workspace, cx) =
10876            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10877
10878        // Add a new panel to the right dock, opening the dock and setting the
10879        // focus to the new panel.
10880        let panel = workspace.update_in(cx, |workspace, window, cx| {
10881            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10882            workspace.add_panel(panel.clone(), window, cx);
10883
10884            workspace
10885                .right_dock()
10886                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10887
10888            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10889
10890            panel
10891        });
10892
10893        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10894        // panel to the next valid position which, in this case, is the left
10895        // dock.
10896        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10897        workspace.update(cx, |workspace, cx| {
10898            assert!(workspace.left_dock().read(cx).is_open());
10899            assert_eq!(panel.read(cx).position, DockPosition::Left);
10900        });
10901
10902        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10903        // panel to the next valid position which, in this case, is the bottom
10904        // dock.
10905        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10906        workspace.update(cx, |workspace, cx| {
10907            assert!(workspace.bottom_dock().read(cx).is_open());
10908            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10909        });
10910
10911        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10912        // around moving the panel to its initial position, the right dock.
10913        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10914        workspace.update(cx, |workspace, cx| {
10915            assert!(workspace.right_dock().read(cx).is_open());
10916            assert_eq!(panel.read(cx).position, DockPosition::Right);
10917        });
10918
10919        // Remove focus from the panel, ensuring that, if the panel is not
10920        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10921        // the panel's position, so the panel is still in the right dock.
10922        workspace.update_in(cx, |workspace, window, cx| {
10923            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10924        });
10925
10926        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10927        workspace.update(cx, |workspace, cx| {
10928            assert!(workspace.right_dock().read(cx).is_open());
10929            assert_eq!(panel.read(cx).position, DockPosition::Right);
10930        });
10931    }
10932
10933    #[gpui::test]
10934    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10935        init_test(cx);
10936
10937        let fs = FakeFs::new(cx.executor());
10938        let project = Project::test(fs, [], cx).await;
10939        let (workspace, cx) =
10940            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10941
10942        let item_1 = cx.new(|cx| {
10943            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10944        });
10945        workspace.update_in(cx, |workspace, window, cx| {
10946            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10947            workspace.move_item_to_pane_in_direction(
10948                &MoveItemToPaneInDirection {
10949                    direction: SplitDirection::Right,
10950                    focus: true,
10951                    clone: false,
10952                },
10953                window,
10954                cx,
10955            );
10956            workspace.move_item_to_pane_at_index(
10957                &MoveItemToPane {
10958                    destination: 3,
10959                    focus: true,
10960                    clone: false,
10961                },
10962                window,
10963                cx,
10964            );
10965
10966            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10967            assert_eq!(
10968                pane_items_paths(&workspace.active_pane, cx),
10969                vec!["first.txt".to_string()],
10970                "Single item was not moved anywhere"
10971            );
10972        });
10973
10974        let item_2 = cx.new(|cx| {
10975            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10976        });
10977        workspace.update_in(cx, |workspace, window, cx| {
10978            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10979            assert_eq!(
10980                pane_items_paths(&workspace.panes[0], cx),
10981                vec!["first.txt".to_string(), "second.txt".to_string()],
10982            );
10983            workspace.move_item_to_pane_in_direction(
10984                &MoveItemToPaneInDirection {
10985                    direction: SplitDirection::Right,
10986                    focus: true,
10987                    clone: false,
10988                },
10989                window,
10990                cx,
10991            );
10992
10993            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10994            assert_eq!(
10995                pane_items_paths(&workspace.panes[0], cx),
10996                vec!["first.txt".to_string()],
10997                "After moving, one item should be left in the original pane"
10998            );
10999            assert_eq!(
11000                pane_items_paths(&workspace.panes[1], cx),
11001                vec!["second.txt".to_string()],
11002                "New item should have been moved to the new pane"
11003            );
11004        });
11005
11006        let item_3 = cx.new(|cx| {
11007            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11008        });
11009        workspace.update_in(cx, |workspace, window, cx| {
11010            let original_pane = workspace.panes[0].clone();
11011            workspace.set_active_pane(&original_pane, window, cx);
11012            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11013            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11014            assert_eq!(
11015                pane_items_paths(&workspace.active_pane, cx),
11016                vec!["first.txt".to_string(), "third.txt".to_string()],
11017                "New pane should be ready to move one item out"
11018            );
11019
11020            workspace.move_item_to_pane_at_index(
11021                &MoveItemToPane {
11022                    destination: 3,
11023                    focus: true,
11024                    clone: false,
11025                },
11026                window,
11027                cx,
11028            );
11029            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11030            assert_eq!(
11031                pane_items_paths(&workspace.active_pane, cx),
11032                vec!["first.txt".to_string()],
11033                "After moving, one item should be left in the original pane"
11034            );
11035            assert_eq!(
11036                pane_items_paths(&workspace.panes[1], cx),
11037                vec!["second.txt".to_string()],
11038                "Previously created pane should be unchanged"
11039            );
11040            assert_eq!(
11041                pane_items_paths(&workspace.panes[2], cx),
11042                vec!["third.txt".to_string()],
11043                "New item should have been moved to the new pane"
11044            );
11045        });
11046    }
11047
11048    #[gpui::test]
11049    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11050        init_test(cx);
11051
11052        let fs = FakeFs::new(cx.executor());
11053        let project = Project::test(fs, [], cx).await;
11054        let (workspace, cx) =
11055            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11056
11057        let item_1 = cx.new(|cx| {
11058            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11059        });
11060        workspace.update_in(cx, |workspace, window, cx| {
11061            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11062            workspace.move_item_to_pane_in_direction(
11063                &MoveItemToPaneInDirection {
11064                    direction: SplitDirection::Right,
11065                    focus: true,
11066                    clone: true,
11067                },
11068                window,
11069                cx,
11070            );
11071            workspace.move_item_to_pane_at_index(
11072                &MoveItemToPane {
11073                    destination: 3,
11074                    focus: true,
11075                    clone: true,
11076                },
11077                window,
11078                cx,
11079            );
11080        });
11081        cx.run_until_parked();
11082
11083        workspace.update(cx, |workspace, cx| {
11084            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11085            for pane in workspace.panes() {
11086                assert_eq!(
11087                    pane_items_paths(pane, cx),
11088                    vec!["first.txt".to_string()],
11089                    "Single item exists in all panes"
11090                );
11091            }
11092        });
11093
11094        // verify that the active pane has been updated after waiting for the
11095        // pane focus event to fire and resolve
11096        workspace.read_with(cx, |workspace, _app| {
11097            assert_eq!(
11098                workspace.active_pane(),
11099                &workspace.panes[2],
11100                "The third pane should be the active one: {:?}",
11101                workspace.panes
11102            );
11103        })
11104    }
11105
11106    mod register_project_item_tests {
11107
11108        use super::*;
11109
11110        // View
11111        struct TestPngItemView {
11112            focus_handle: FocusHandle,
11113        }
11114        // Model
11115        struct TestPngItem {}
11116
11117        impl project::ProjectItem for TestPngItem {
11118            fn try_open(
11119                _project: &Entity<Project>,
11120                path: &ProjectPath,
11121                cx: &mut App,
11122            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11123                if path.path.extension().unwrap() == "png" {
11124                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11125                } else {
11126                    None
11127                }
11128            }
11129
11130            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11131                None
11132            }
11133
11134            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11135                None
11136            }
11137
11138            fn is_dirty(&self) -> bool {
11139                false
11140            }
11141        }
11142
11143        impl Item for TestPngItemView {
11144            type Event = ();
11145            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11146                "".into()
11147            }
11148        }
11149        impl EventEmitter<()> for TestPngItemView {}
11150        impl Focusable for TestPngItemView {
11151            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11152                self.focus_handle.clone()
11153            }
11154        }
11155
11156        impl Render for TestPngItemView {
11157            fn render(
11158                &mut self,
11159                _window: &mut Window,
11160                _cx: &mut Context<Self>,
11161            ) -> impl IntoElement {
11162                Empty
11163            }
11164        }
11165
11166        impl ProjectItem for TestPngItemView {
11167            type Item = TestPngItem;
11168
11169            fn for_project_item(
11170                _project: Entity<Project>,
11171                _pane: Option<&Pane>,
11172                _item: Entity<Self::Item>,
11173                _: &mut Window,
11174                cx: &mut Context<Self>,
11175            ) -> Self
11176            where
11177                Self: Sized,
11178            {
11179                Self {
11180                    focus_handle: cx.focus_handle(),
11181                }
11182            }
11183        }
11184
11185        // View
11186        struct TestIpynbItemView {
11187            focus_handle: FocusHandle,
11188        }
11189        // Model
11190        struct TestIpynbItem {}
11191
11192        impl project::ProjectItem for TestIpynbItem {
11193            fn try_open(
11194                _project: &Entity<Project>,
11195                path: &ProjectPath,
11196                cx: &mut App,
11197            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11198                if path.path.extension().unwrap() == "ipynb" {
11199                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11200                } else {
11201                    None
11202                }
11203            }
11204
11205            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11206                None
11207            }
11208
11209            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11210                None
11211            }
11212
11213            fn is_dirty(&self) -> bool {
11214                false
11215            }
11216        }
11217
11218        impl Item for TestIpynbItemView {
11219            type Event = ();
11220            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11221                "".into()
11222            }
11223        }
11224        impl EventEmitter<()> for TestIpynbItemView {}
11225        impl Focusable for TestIpynbItemView {
11226            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11227                self.focus_handle.clone()
11228            }
11229        }
11230
11231        impl Render for TestIpynbItemView {
11232            fn render(
11233                &mut self,
11234                _window: &mut Window,
11235                _cx: &mut Context<Self>,
11236            ) -> impl IntoElement {
11237                Empty
11238            }
11239        }
11240
11241        impl ProjectItem for TestIpynbItemView {
11242            type Item = TestIpynbItem;
11243
11244            fn for_project_item(
11245                _project: Entity<Project>,
11246                _pane: Option<&Pane>,
11247                _item: Entity<Self::Item>,
11248                _: &mut Window,
11249                cx: &mut Context<Self>,
11250            ) -> Self
11251            where
11252                Self: Sized,
11253            {
11254                Self {
11255                    focus_handle: cx.focus_handle(),
11256                }
11257            }
11258        }
11259
11260        struct TestAlternatePngItemView {
11261            focus_handle: FocusHandle,
11262        }
11263
11264        impl Item for TestAlternatePngItemView {
11265            type Event = ();
11266            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11267                "".into()
11268            }
11269        }
11270
11271        impl EventEmitter<()> for TestAlternatePngItemView {}
11272        impl Focusable for TestAlternatePngItemView {
11273            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11274                self.focus_handle.clone()
11275            }
11276        }
11277
11278        impl Render for TestAlternatePngItemView {
11279            fn render(
11280                &mut self,
11281                _window: &mut Window,
11282                _cx: &mut Context<Self>,
11283            ) -> impl IntoElement {
11284                Empty
11285            }
11286        }
11287
11288        impl ProjectItem for TestAlternatePngItemView {
11289            type Item = TestPngItem;
11290
11291            fn for_project_item(
11292                _project: Entity<Project>,
11293                _pane: Option<&Pane>,
11294                _item: Entity<Self::Item>,
11295                _: &mut Window,
11296                cx: &mut Context<Self>,
11297            ) -> Self
11298            where
11299                Self: Sized,
11300            {
11301                Self {
11302                    focus_handle: cx.focus_handle(),
11303                }
11304            }
11305        }
11306
11307        #[gpui::test]
11308        async fn test_register_project_item(cx: &mut TestAppContext) {
11309            init_test(cx);
11310
11311            cx.update(|cx| {
11312                register_project_item::<TestPngItemView>(cx);
11313                register_project_item::<TestIpynbItemView>(cx);
11314            });
11315
11316            let fs = FakeFs::new(cx.executor());
11317            fs.insert_tree(
11318                "/root1",
11319                json!({
11320                    "one.png": "BINARYDATAHERE",
11321                    "two.ipynb": "{ totally a notebook }",
11322                    "three.txt": "editing text, sure why not?"
11323                }),
11324            )
11325            .await;
11326
11327            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11328            let (workspace, cx) =
11329                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11330
11331            let worktree_id = project.update(cx, |project, cx| {
11332                project.worktrees(cx).next().unwrap().read(cx).id()
11333            });
11334
11335            let handle = workspace
11336                .update_in(cx, |workspace, window, cx| {
11337                    let project_path = (worktree_id, rel_path("one.png"));
11338                    workspace.open_path(project_path, None, true, window, cx)
11339                })
11340                .await
11341                .unwrap();
11342
11343            // Now we can check if the handle we got back errored or not
11344            assert_eq!(
11345                handle.to_any_view().entity_type(),
11346                TypeId::of::<TestPngItemView>()
11347            );
11348
11349            let handle = workspace
11350                .update_in(cx, |workspace, window, cx| {
11351                    let project_path = (worktree_id, rel_path("two.ipynb"));
11352                    workspace.open_path(project_path, None, true, window, cx)
11353                })
11354                .await
11355                .unwrap();
11356
11357            assert_eq!(
11358                handle.to_any_view().entity_type(),
11359                TypeId::of::<TestIpynbItemView>()
11360            );
11361
11362            let handle = workspace
11363                .update_in(cx, |workspace, window, cx| {
11364                    let project_path = (worktree_id, rel_path("three.txt"));
11365                    workspace.open_path(project_path, None, true, window, cx)
11366                })
11367                .await;
11368            assert!(handle.is_err());
11369        }
11370
11371        #[gpui::test]
11372        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11373            init_test(cx);
11374
11375            cx.update(|cx| {
11376                register_project_item::<TestPngItemView>(cx);
11377                register_project_item::<TestAlternatePngItemView>(cx);
11378            });
11379
11380            let fs = FakeFs::new(cx.executor());
11381            fs.insert_tree(
11382                "/root1",
11383                json!({
11384                    "one.png": "BINARYDATAHERE",
11385                    "two.ipynb": "{ totally a notebook }",
11386                    "three.txt": "editing text, sure why not?"
11387                }),
11388            )
11389            .await;
11390            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11391            let (workspace, cx) =
11392                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11393            let worktree_id = project.update(cx, |project, cx| {
11394                project.worktrees(cx).next().unwrap().read(cx).id()
11395            });
11396
11397            let handle = workspace
11398                .update_in(cx, |workspace, window, cx| {
11399                    let project_path = (worktree_id, rel_path("one.png"));
11400                    workspace.open_path(project_path, None, true, window, cx)
11401                })
11402                .await
11403                .unwrap();
11404
11405            // This _must_ be the second item registered
11406            assert_eq!(
11407                handle.to_any_view().entity_type(),
11408                TypeId::of::<TestAlternatePngItemView>()
11409            );
11410
11411            let handle = workspace
11412                .update_in(cx, |workspace, window, cx| {
11413                    let project_path = (worktree_id, rel_path("three.txt"));
11414                    workspace.open_path(project_path, None, true, window, cx)
11415                })
11416                .await;
11417            assert!(handle.is_err());
11418        }
11419    }
11420
11421    #[gpui::test]
11422    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11423        init_test(cx);
11424
11425        let fs = FakeFs::new(cx.executor());
11426        let project = Project::test(fs, [], cx).await;
11427        let (workspace, _cx) =
11428            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11429
11430        // Test with status bar shown (default)
11431        workspace.read_with(cx, |workspace, cx| {
11432            let visible = workspace.status_bar_visible(cx);
11433            assert!(visible, "Status bar should be visible by default");
11434        });
11435
11436        // Test with status bar hidden
11437        cx.update_global(|store: &mut SettingsStore, cx| {
11438            store.update_user_settings(cx, |settings| {
11439                settings.status_bar.get_or_insert_default().show = Some(false);
11440            });
11441        });
11442
11443        workspace.read_with(cx, |workspace, cx| {
11444            let visible = workspace.status_bar_visible(cx);
11445            assert!(!visible, "Status bar should be hidden when show is false");
11446        });
11447
11448        // Test with status bar shown explicitly
11449        cx.update_global(|store: &mut SettingsStore, cx| {
11450            store.update_user_settings(cx, |settings| {
11451                settings.status_bar.get_or_insert_default().show = Some(true);
11452            });
11453        });
11454
11455        workspace.read_with(cx, |workspace, cx| {
11456            let visible = workspace.status_bar_visible(cx);
11457            assert!(visible, "Status bar should be visible when show is true");
11458        });
11459    }
11460
11461    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11462        pane.read(cx)
11463            .items()
11464            .flat_map(|item| {
11465                item.project_paths(cx)
11466                    .into_iter()
11467                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11468            })
11469            .collect()
11470    }
11471
11472    pub fn init_test(cx: &mut TestAppContext) {
11473        cx.update(|cx| {
11474            let settings_store = SettingsStore::test(cx);
11475            cx.set_global(settings_store);
11476            theme::init(theme::LoadThemes::JustBase, cx);
11477        });
11478    }
11479
11480    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11481        let item = TestProjectItem::new(id, path, cx);
11482        item.update(cx, |item, _| {
11483            item.is_dirty = true;
11484        });
11485        item
11486    }
11487}